Copula (linguistics)

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In linguistics, a copula (plural: copulas or copulae) is a word used to link the subject of a sentence with a predicate (a subject complement), such as the word is in the sentence "The sky is blue." The word copula derives from the Latin noun for a "link" or "tie" that connects two different things.[1]

A copula is often a verb or a verb-like word, though this is not universally the case.[2] A verb that is a copula is sometimes called a copulative or copular verb. In English primary education grammar courses, a copula is often called a linking verb. In other languages, copulas show more resemblances to pronouns, as in Classical Chinese and Guarani, or may take the form of suffixes attached to a noun, as in Beja, Ket, and Inuit languages.

Most languages have one main copula, although some (such as Spanish, Portuguese and Thai) have more than one, and some have none. In the case of English, this is the verb to be. While the term copula is generally used to refer to such principal forms, it may also be used to refer to some other verbs with similar functions, like become, get, feel and seem in English (these may also be called "semi-copulas" or "pseudo-copulas").

Grammatical function

The principal use of a copula is to link the subject of a clause to the predicate. A copular verb is often considered to be part of the predicate, the remainder being called a predicative expression. A simple clause containing a copula is illustrated below:

The book is on the table.

In this English sentence, the noun phrase the book is the subject, the verb is serves as the copula, and the prepositional phrase on the table is the predicative expression. The whole expression is on the table may (in some theories of grammar) be called a predicate or a verb phrase.

The predicative expression accompanying the copula – also known as the complement of the copula – may take any of several possible forms: it may for example be a noun or noun phrase, an adjective or adjective phrase, a prepositional phrase (as above) or another adverb or adverbial phrase expressing time or location. Examples are given below (with the copula in bold and the predicative expression in italics):

Mary and John are my friends.
The sky was blue.
I am taller than most people.
The birds and the beasts were there.

The three components (subject, copula and predicative expression) do not necessarily appear in that order – their positioning depends on the rules for word order applicable to the language in question. In English (an SVO language) the ordering given is the normal one, although here too certain variation is possible:

It is also possible in certain circumstances for one (or even two) of the three components to be absent:

  • In null-subject (pro-drop) languages, the subject may be omitted, as it may from other types of sentence. For example, in Italian, sono stanco means "I am tired", literally "am tired".
  • In non-finite clauses in languages such as English, the subject is often absent, as in the participial phrase being tired or the infinitive phrase to be tired. The same applies to most imperative sentences, such as Be good!
  • For cases where no copula appears, see Zero copula below.
  • Any of the three components may be omitted as a result of various general types of ellipsis. In particular, in English, the predicative expression may be elided in a construction similar to verb phrase ellipsis, as in short sentences like I am; Are they? (where the predicative expression is understood from the previous context).

Inverse copular constructions, in which the positions of the predicative expression and the subject are reversed, are found in various languages.[3] These have been the subject of much theoretical analysis, particularly in regard to the difficulty of maintaining, in the case of such sentences, the usual division into a subject noun phrase and a predicate verb phrase. Another issue is verb agreement when both subject and predicative expression are noun phrases (and differ in number or person): in English the copula normally agrees with the preceding phrase, even if it is not logically the subject, as in the cause of the riot is (not are) these pictures of the wall. Compare Italian la causa della rivolta sono ("are", not è "is") queste foto del muro.

Meanings

Predicates formed using a copula may express identity – that the two noun phrases (subject and complement) have the same referent or express an identical concept:

I only want to be myself.
The Morning Star is the Evening Star.

They may also express membership of a class, or a subset relationship:

She was a nurse.
Dogs are carnivorous mammals.

Similarly they may express some property, relation or position, whether permanent or temporary:

The trees are green.
I am your boss.
The hen is next to the cockerel.
The children are confused.

Other special uses of copular verbs are described in some of the following sections.

Essence versus state

Some languages use different copulas, or different syntax, when denoting a permanent, essential characteristic of something and when denoting a temporary state. For examples of this, see the sections below on the Romance languages, Slavic languages and Irish.

Forms

In many languages the principal copula is a verb, such as English (to) be, German sein, French être, etc. This may inflect for grammatical categories such as tense, aspect and mood, like other verbs in the language. As a very commonly used verb, it is likely that the copula will have irregular inflected forms; this is the case in English, where the verb be has a number of highly irregular (suppletive) forms, and in fact has a larger number of different inflected forms than any other English verb (am, is, are, was, were, etc.; see English verbs for details).

Other copulas show more resemblances to pronouns. This is the case for Classical Chinese and Guarani, for instance. In highly synthetic languages, copulas are often suffixes, attached to a noun, that may still behave otherwise like ordinary verbs, for example -u- in Inuit languages. In some other languages, such as Beja and Ket, the copula takes the form of suffixes that attach to a noun but are distinct from the person agreement markers used on predicative verbs.[4] This phenomenon is known as nonverbal person agreement (or nonverbal subject agreement) and the relevant markers are always established as deriving from cliticized independent pronouns.

For cases where the copula is omitted or takes zero form, see Zero copula below.

Additional uses of copular verbs

A copular verb may also have other uses supplementary to or distinct from its uses as a copula.

As auxiliary verbs

The English copular verb be can be used as an auxiliary verb, expressing passive voice (together with the past participle) or expressing progressive aspect (together with the present participle). For example:

The man was killed. (passive)
It is raining. (progressive)

Other languages' copulas also have uses as auxiliaries. For example, French être can be used to express passive voice similarly to English be, and both French être and German sein are used to express the perfect forms of certain verbs:

Je suis arrivé. French for "I have arrived", literally "I am arrived."

This last usage was formerly prevalent in English also. The auxiliary functions of these verbs derive from their copular function, and can be interpreted as a special case of the copular function (the verbal form that follows it being considered adjectival).

Another auxiliary-type usage of the copula in English is together with the to-infinitive to denote an obligatory action or expected occurrence: "I am to serve you"; "The manager is to resign". This can also be put into past tense: "We were to leave at 9". For forms like "if I was/were to come", see English conditional sentences.

Existential usage

The English to be, and its equivalents in certain other languages, also have a non-copular use as an existential verb, meaning "to exist". This use is illustrated in the following sentences: I want only to be, and that is enough; I think therefore I am; To be or not to be, that is the question. In these cases the verb itself expresses a predicate (that of existence), rather than linking to a predicative expression as it does when used as a copula. In ontology it is sometimes suggested that the "is" of existence is reducible to the "is" of property attribution or class membership; to be, Aristotle held, is to be something. However Abelard in his Dialectica made a reductio ad absurdum argument against the idea that the copula can express existence.[5]

Similar examples can be found in many other languages; for example, the French and Latin equivalents of I think therefore I am are Je pense, donc je suis and Cogito ergo sum, where suis and sum are the equivalents of English am, normally used as copulas. However other languages prefer a different verb for existential use, as in the Spanish version Pienso, luego existo (where the verb existir "to exist" is used rather than the copula ser or estar "to be").

Another type of existential usage is in clauses of the there is... or there are... type. Languages differ in the way they express such meanings; some of them use the copular verb, possibly with an expletive pronoun like the English there, while other languages use different verbs and constructions, like the French il y a (which uses parts of the verb avoir "to have", not the copula être) or the Swedish finns (the passive voice of the verb for "to find"). For details, see existential clause.

Relying on a unified theory of copular sentences, it has been proposed that the English there-sentences are subtypes of inverse copular constructions.[6]

Zero copula

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In some languages, copula omission occurs within a particular grammatical context. For example, speakers of Russian, Hungarian, Arabic, Hebrew, and Quechuan languages consistently drop the copula in present tense: Russian: я человек, ya chelovek "I (am a) person"; Hungarian: ő ember, "s/he (is) a human"; Arabic: أنا إنسان ʔanā ʔinsān, "I (am) a human"; Hebrew: אני אדם ʔani ʔadam "I (am a) human"; Southern Quechua: payqa runam "s/he (is) a human". This usage is known generically as the zero copula. Note that in other tenses (sometimes in other persons besides third singular) the copula usually reappears.

In informal speech of English, the copula may be dropped, as in the sentence, "She a nurse". This is a feature of African American vernacular English but is also used by a variety of English speakers in informal contexts.[7]

In Ancient Greek, when an adjective precedes a noun with an article, the copula is understood. Thus, ὁ οἴκος ἐστὶ μακρός, "the house is large," can be written μακρός ὁ οἴκος, "large the house (is)."[citation needed]

In Quechua (Southern Quechua used for the examples) zero copula is restricted to present tense in third person singular only (kan): Payqa runam  — "(s)he is a human"; but: (paykuna) runakunam kanku "(they) are human".[citation needed]

In Maori, the zero copula can be used in predicative expressions and with continuous verbs (many of which take a copulative verb in many Indo-European languages) — He nui te whare, literally "a big the house", "the house (is) big"; I te tēpu te pukapuka, literally "at (past locative particle) the table the book", "the book (was) on the table"; Nō Ingarangi ia, literally "from England (s)he", "(s)he (is) from England"; Kei te kai au, literally "at the (act of) eating I", "I (am) eating".[8][9]

Alternatively, in many cases, the particle ko can be used as a copulative, (though not all instances of ko are used to this effect since, like all Maori particles, ko has multiple purposes): Ko nui te whare "The house is big"; Ko te pukapuka kei te tēpu "It is the book (that is) on the table"; Ko au kei te kai "It is me eating".

However, when expressing identity or class membership, ko must be used: Ko tēnei tāku pukapuka "This is my book"; Ko Ōtautahi he tāone i Te Waipounamu "Christchurch is a city in the South Island (of New Zealand)"; Ko koe tōku hoa "You are my friend".

Note that when expressing identity, ko can be placed on either object in the clause without changing the meaning (ko tēnei tāku pukapuka is the same as ko tāku pukapuka tēnei), but not on both (ko tēnei ko tāku pukapuka would be equivalent to saying "it is this, it is my book" in English). [10]

In Hungarian, zero copula is restricted to present tense in third person singular and plural: Ő ember/Ők emberek — "s/he is a human"/"they are humans"; but: (én) ember vagyok "I am a human", (te) ember vagy "you are a human", mi emberek vagyunk "we are humans", (ti) emberek vagytok "you (all) are humans". The copula also reappears for stating locations: az emberek a házban vannak, "the people are in the house," and for stating time: hat óra van, "it is six o'clock." However, the copula may optionally get omitted in colloquial language: hat óra (van), "it is six o'clock."

Hungarian uses copula lenni for expressing location Itt van Róbert "Bob is here", but it is omitted in the third person present tense for attribution or identity statements Róbert öreg "Bob is old"; ők éhesek "They are hungry"; Kati nyelvtudós "Cathy is a linguist" (but: Róbert öreg volt "Bob was old", éhesek voltak "They were hungry", Kati nyelvtudós volt "Cathy was a linguist).

Further restrictions may apply before omission is permitted. For example, in the Irish language, is, the present tense of the copula, may be omitted when the predicate is a noun. Ba the past/conditional cannot be deleted. If the present copula is omitted, the following pronoun é, í, iad preceding the noun is omitted as well.

Additional copulas

Sometimes the term copula is taken to include not only a language's equivalent(s) to the verb be, but also other verbs or forms which serve to link a subject to a predicative expression (while adding semantic content of their own). For example, English verbs such as become, get, feel, look, taste, smell, and seem can have this function, as in the following sentences (where the predicative expression – the complement of the verb – is in italics):

She became a student.
They look tired.
The milk tastes bad.
That bread smells good.
I feel bad that she can't come with us.

(This usage should be distinguished from the use of some of these verbs as "action" verbs, as in They look at the wall, where look denotes an action and cannot be replaced by the basic copula are.)

Some verbs have rarer, secondary uses as copular verbs, such as the verb fall in sentences like The zebra fell victim to the lion.

These extra copulas are sometimes called "semi-copulas" or "pseudo-copulas".[11] For a list of common verbs of this type in English, see List of English copulae.

Copulas in particular languages

English

The English copular verb be has eight forms (more than any other English verb): be, am, is, are, being, was, were, been. Additional archaic forms include art, wast, wert, and occasionally beest (as a subjunctive). For more details see English verbs. For the etymology of the various forms, see Indo-European copula.

The main uses of the copula in English are described in the above sections. The possibility of copula omission is mentioned under Zero copula.

A particular construction found in English (particularly in speech) is the use of two successive copulas when only one appears necessary, as in My point is, is that.... The acceptability of this construction is a disputed matter in English grammar.

Indo-European

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In Indo-European languages, the words meaning to be are sometimes similar to each other. Due to the high frequency of their use, their inflection retains a considerable degree of similarity in some cases. Thus, for example, the English form is is a cognate of German ist, Latin est, Persian ast and Russian jest', even though the Germanic, Italic and Slavic language groups split at least 3000 years ago. The origins of the copulas of most Indo-European languages can be traced back to four Proto-Indo-European stems: *es- (*h1es-), *sta- (*steh2-), *wes- and *bhu- (*bʰuH-).

Muylaq' Aymaran

Uniquely, the existence of the copulative verbalizer suffix in the Southern Peruvian Aymaran language variety, Muylaq’ Aymara, is only evident in the surfacing of a vowel which would otherwise have been deleted owing to the presence of a following suffix lexically pre-specified to suppress it. As the copulative verbalizer has no independent phonetic structure, it is represented by the Greek letter ʋ in the examples used in this entry. Accordingly, unlike in most other Aymaran variants in which the copulative verbalizer is expressed with a vowel-lengthening component, -:, the presence of the copulative verbalizer in Muylaq’ Aymara is often not apparent on the surface at all, and is only analyzed as existing meta-linguistically. However, it is also relevant to note that in a verb phrase like 'it is old', the noun thantha meaning 'old' does not require the copulative verbalizer, thantha-wa 'it is old'.

It is now pertinent to make some observations about the distribution of the copulative verbalizer. The best place to start is with words in which its presence or absence is obvious. When the vowel-suppressing first person simple tense suffix attaches to a verb, the vowel of the immediately preceding suffix is suppressed (in the examples in this subsection, the subscript "c" appears prior to vowel-suppressing suffixes in the interlinear gloss to better distinguish instances of deletion that arise from the presence of a lexically pre-specified suffix from those that arise from other (e.g. phonotactic) motivations). Consider the verb sara- which is inflected for the first person simple tense and so, predictably, loses its final root vowel: sar(a)-ct-wa 'I go'.

However, prior to the suffixation of the first person simple suffix -ct to the same root nominalized with the agentive nominalizer -iri, the word must be verbalized. The fact that the final vowel of -iri below is not suppressed indicates the presence of an intervening segment, the copulative verbalizer: sar(a)-iri-ʋ-t-wa ‘I usually go’.

It is worthwhile to compare of the copulative verbalizer in Muylaq’ Aymara as compared to La Paz Aymara, a variant which represents this suffix with vowel lengthening. Consider the near-identical sentences below, both translations of 'I have a small house' in which the nominal rootb uta-ni 'house-attributive' is verbalized with the copulative verbalizer—though note that the correspondence between the copulative verbalizer in these two variants is not always a strict one-to-one relation [12]

La Paz Aymara: ma: jisk’a uta-ni-:-ct(a)-wa
Muylaq' Aymara: ma isk’a uta-ni-ʋ-ct-wa

Georgian

As in English, the verb "to be" (qopna) is irregular in Georgian (a Kartvelian language); different verb roots are employed in different tenses. The roots -ar-, -kn-, -qav-, and -qop- (past participle) are used in the present tense, future tense, past tense and the perfective tenses respectively. Examples:

Masc'avlebeli var. "I am a teacher."
Masc'avlebeli viknebi. "I will be a teacher."
Masc'avlebeli viqavi. "I was a teacher."
Masc'avlebeli vqopilvar. "I have been a teacher."
Masc'avlebeli vqopiliqavi. "I had been a teacher."

Note that, in the last two examples (perfective and pluperfect), two roots are used in one verb compound. In the perfective tense, the root qop (which is the expected root for the perfective tense) is followed by the root ar, which is the root for the present tense. In the pluperfective tense, again, the root qop is followed by the past tense root qav. This formation is very similar to German (an Indo-European language), where the perfect and the pluperfect are expressed in the following way:

Ich bin Lehrer gewesen. "I have been a teacher", literally "I am teacher been."
Ich war Lehrer gewesen. "I had been a teacher", literally "I was teacher been."

Here, gewesen is the past participle of sein ("to be") in German. In both examples, as in Georgian, this participle is used together with the present and the past forms of the verb in order to conjugate for the perfect and the pluperfect aspects.

Persian

In Persian the verb to be can either take the form of ast in the form of English is or budan in the form of to be.

Aseman abi ast. the sky "is" blue
Aseman abi khahad bood. the sky will be blue
Aseman abi bood. the sky was blue

Romance

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Copulas in the Romance languages usually consist of two different verbs that can be translated as "to be", the main one from the Latin esse (via Vulgar Latin essere; esse deriving from *es-), often referenced as sum, another of the Latin verb's principal parts, and a secondary one from stare (from *sta-), often referenced as sto, another of that Latin verb's principal parts. The resulting distinction in the modern forms is found in all the Iberian Romance languages, and to a lesser extent Italian, but not in French or Romanian. The difference is that the first usually refers to essential characteristics, while the second refers to states and situations, e.g., "Bob is old" versus "Bob is well". A similar division is found in the non-Romance Basque language (viz. egon and izan). (Note that the English words just used, "essential" and "state", are also cognate with the Latin infinitives esse and stare. The word "stay" also comes from Latin stare, through Middle French "estai", stem of Old French "ester".) In Spanish and Portuguese, the high degree of verbal inflection, plus the existence of two copulas (ser and estar), means that there are 105 (Spanish) and 110 (Portuguese)[13] separate forms to express the copula, compared to eight in English and one in Chinese.

Copula Language
Italian Spanish English
Sum-derived Bob è vecchio. Bob es viejo. "Bob is old."
Sto-derived Bob sta bene. Bob está bien. "Bob is well."

In some cases, the verb itself changes the meaning of the adjective/sentence. The following examples are from Portuguese:

Copula Example 1 Example 2
Portuguese English Portuguese English
Sum-derived O Bob é bom. "Bob is good." O Bob é parvo. "Bob is foolish."
Sto-derived O Bob está bom. "Bob is feeling well." O Bob está parvo. "Bob is acting/being silly."

Slavic

Some Slavic languages make a distinction between essence and state (similar to that discussed in the above section on the Romance languages), by putting a predicative expression denoting a state into the instrumental case, while essential characteristics are in the nominative. This can apply with other copula verbs as well (e.g. the verbs for "become" are normally used with the instrumental).

As noted above under Zero copula, Russian and other East Slavic languages generally omit the copula in the present tense.

Irish

In Irish and Scottish Gaelic, not only are there two copulas but the syntax is also changed when one is distinguishing between states or situations and essential characteristics. Describing the subject's state or situation typically uses the normal VSO ordering with the verb . The copula is is used to state essential characteristics or equivalences.

In Irish, the copula is used for things that are in a permanent state.

Is fear é Liam "Liam is a man" (lit., is man Liam)
Is leabhar é sin "That is a book" (lit., is book it that)

The word "is" is the copula (rhymes with the English word "hiss"). The pronoun used with the copula is different from the normal pronoun. For a masculine singular noun, "é" is used (for "he" or "it"), as opposed to the normal pronoun "sé"; for a feminine singular noun, "í" is used (for "she" or "it"), as opposed to normal pronoun "sí"; for plural nouns, "iad" is used (for "they" or "those"), as opposed to the normal pronoun "siad".[14]

To describe non-permanent states, "to be" is used, e.g., Tá mé i mo rith. "I am running."[15]

Haitian Creole

Haitian Creole, a French-based creole language, has three forms of the copula: se, ye, and the zero copula, no word at all (the position of which will be indicated with Ø, just for purposes of illustration).

Although no textual record exists of Haitian-Creole at its earliest stages of development from French, se is derived from French [se] (written c'est), which is the normal French contraction of [sə] (that, written ce) and the copula [e] (is, written est) (a form of the verb être).

The derivation of ye is less obvious; but we can assume that the French source was [ile] ("he/it is", written il est), which, in rapidly spoken French, is very commonly pronounced as [je] (typically written y est).

The use of a zero copula is unknown in French, and it is thought to be an innovation from the early days when Haitian-Creole was first developing as a Romance-based pidgin. Latin also sometimes used a zero copula.

Which of se / ye / Ø is used in any given copula clause depends on complex syntactic factors that we can superficially summarize in the following four rules:

1. Use Ø (i.e., no word at all) in declarative sentences where the complement is an adjective phrase, prepositional phrase, or adverb phrase:

Li te Ø an Ayiti. "She was in Haiti." (she past-tense in Haiti)
Liv-la Ø jon. "The book is yellow." (book-the yellow)
Timoun-yo Ø lakay. "The kids are [at] home." (kids-the home)

2. Use se when the complement is a noun phrase. But note that, whereas other verbs come after any tense/mood/aspect particles (like pa to mark negation, or te to explicitly mark past tense, or ap to mark progressive aspect), se comes before any such particles:

Chal se ekriven. "Charles is writer."
Chal, ki se ekriven, pa vini. "Charles, who is writer, not come."

3. Use se where French and English have a dummy "it" subject:

Se mwen! "It's me!" French C'est moi!
Se pa fasil. "It's not easy," colloquial French C'est pas facile.

4. Finally, use the other copula form ye in situations where the sentence's syntax leaves the copula at the end of a phrase:

Kijan ou ye? "How you are?"
Pou kimoun liv-la te ye? "Whose book was it?" (of who book-the past-tense is?)
M pa konnen kimoun li ye. "I don't know who he is." (I not know who he is)
Se yon ekriven Chal ye. "Charles is a writer!" (it's a writer Charles is; cf. French C'est un écrivain qu'il est.)

The above is, however, only a simplified analysis.[16][17]

Japanese

Japanese has copulas that are most often translated as the "be" verb of English.

The Japanese copula has many forms. The words da and desu are used to predicate sentences, while na and de are particles used within sentences to modify or connect.

Japanese sentences with copulas most often equate one thing with another, that is, they are of the form "A is B." Examples:

私は学生だ。 Watashi wa gakusei da. "I'm a student." (lit., I TOPIC student COPULA)
これはペンです。 Kore wa pen desu. "This is a pen." (lit., this TOPIC pen COPULA-POLITE)

The difference between da and desu appears simple. For instance desu is more formal and polite than da. Thus, many sentences such as the ones below are almost identical in meaning and differ in the speaker's politeness to the addressee and in nuance of how assured the person is of their statement. However, desu may never come before the end of a sentence, and da is used exclusively to delineate subordinate clauses.

あれはホテルだ。 Are wa hoteru da. "That's a hotel." (lit., that TOPIC hotel COPULA)
あれはホテルです。 Are wa hoteru desu. "That is a hotel." (lit., that TOPIC hotel COPULA-POLITE)

Japanese sentences may be predicated with copulas or with verbs. However, desu may not always be a predicate. In some cases, its only function is to make a sentence predicated with a stative verb more polite. However, da always functions as a predicate, so it cannot be combined with a stative verb, because sentences need only one predicate. See the examples below.

このビールはおいしい。 Kono bīru wa oishii. "This beer is delicious." (lit., this beer TOPIC be-tasty)
このビールはおいしいです。 Kono bīru wa oishii desu. "This beer is delicious." (lit., this beer TOPIC be-tasty POLITE)
*このビールはおいしいだ。 *Kono bīru wa oishii da. This is unacceptable because da may only serve as a predicate.

There are several theories as to the origin of desu; one is that it is a shortened form of であります de arimasu, which is a polite form of である de aru. In general, both forms are used in only writing and more formal situations. Another form, でございます de gozaimasu, which is the more formal version of de arimasu, in the etymological sense a conjugation of でござる de gozaru and an honorific suffix -ます -masu, is also used in some situations and is very polite. Note that de aru and de gozaru are considered to be compounds of a particle で de, and existential verbs aru and gozaru. です desu may be pronounced っす ssu in colloquial speech. The copula is subject to dialectal variation throughout Japan, resulting in forms such as や ya (in Kansai) and じゃ ja (in Hiroshima).[citation needed]

Japanese also has two verbs corresponding to English "to be": aru and iru. They are not copulas but existential verbs. Aru is used for inanimate objects, including plants, whereas iru is used for animate things like people, animals, and robots, though there are exceptions to this generalization.

本はテーブルにある。 Hon wa tēburu ni aru. "The book is on a table."
小林さんはここにいる。 Kobayashi-san wa koko ni iru. "Kobayashi is here."

Japanese speakers, when learning English, often drop the auxiliary verbs "be" and "do", incorrectly believing that "be" is a semantically empty copula equivalent to "desu" and "da".[18]

Korean

For sentences with predicate nominatives, the copula "이다" (i-da) is added to the predicate nominative (with no space in between).

바나나는 과일이다. Ba-na-na-neun gwa-il-i-da.. "Bananas are a fruit."

Some adjectives (usually color adjectives) are nominalized and used with the copula "이다".

1. Without the copula "이다":

장미는 빨개요. jang-mi-neun ppal-gae-yo.. "roses are red."

2. With the copula "이다":

장미는 빨간색이다. jang-mi-neun ppal-gan-saek-i-da.. "roses are red-coloured."

Some Korean adjectives are derived using the copula. Separating these articles and nominalizing the former part will often result in a sentence with a related, but different meaning. Using the separated sentence in a situation where the un-separated sentence is appropriate is usually acceptable as the listener can decide what the speaker is trying to say using the context.

Chinese

N.B. The characters used are simplified ones, and the transcriptions given in italics reflect Standard Chinese pronunciation, using the pinyin system.

In Chinese, both states and qualities are, in general, expressed with stative verbs (SV) with no need for a copula, e.g., in Mandarin, "to be tired" (累 lèi), "to be hungry" (饿 è), "to be located at" (在 zài), "to be stupid" (笨 bèn) and so forth. A sentence can consist simply of a pronoun and such a verb: for example, 我饿 wǒ è ("I am hungry"). Usually, however, verbs expressing qualities are qualified by an adverb (meaning "very", "not", "quite", etc.); when not otherwise qualified, they are often preceded by 很 hěn, which in other contexts means "very", but in this use often has no particular meaning. See also Chinese adjectives, and Chinese grammar.

Only sentences with a noun as the complement (e.g. "this is my sister") use the copular verb "to be": 是 shì. This is used frequently: For example, instead of having a verb meaning "to be Chinese", the usual expression is "to be a Chinese person" (我是中国人 wǒ shì Zhōnggúorén "I am a Chinese person", "I am Chinese"). This 是 shì is sometimes called an equative verb. Another possibility is for the complement to be just a noun modifier (ending in 的 de), the noun being omitted: 我的汽车是红色的 wǒde qìchē shì hóngsè de "my car is (a) red (one)".

Before the Han Dynasty, the character 是 served as a demonstrative pronoun meaning "this" (this usage survives in some idioms and proverbs, as well as in Japanese). Some linguists believe that 是 developed into a copula because it often appeared, as a repetitive subject, after the subject of a sentence (in classical Chinese we can say, for example: "George W. Bush, this president of the United States" meaning "George W. Bush is the president of the United States).[19] The character 是 appears to be formed as a compound of characters with the meanings of "early" and "straight".

Another use of 是 in modern Chinese is in combination with the modifier 的 de to mean "yes" or to show agreement. For example: Question: 你的汽车是不是红色的? nǐ de qìchē shì bú shì hóngsè de? "Is your car red or not?" Response: 是的 shì de "is", meaning "yes", or 不是 bú shì "not is", meaning "no". (A more common way of showing that the person asking the question is correct is by simply saying "right" or "correct", 对 duì; the corresponding negative answer is 不对 bú duì, "not right".) Yet another use of 是 is in the shì...(de) construction, which is used to emphasize a particular element of the sentence; see Chinese grammar→Cleft sentences.

In Hokkien acts as the copula, and 是 /z/ is the equivalent in Wu Chinese. Cantonese uses 係 (Jyutping: hai6) instead of 是; similarly, Hakka uses 係 he55.

Siouan languages

In Siouan languages like Lakota, in principle almost all words — according to their structure — are verbs. So not only (transitive, intransitive and so-called 'stative') verbs but even nouns often behave like verbs and do not need to have copulas.

For example, the word wičháša refers to a man, and the verb "to-be-a-man" is expressed as wimáčhaša/winíčhaša/wičháša (I am/you are/he is a man). Yet there also is a copula héčha (to be a ...) that in most cases is used: wičháša hemáčha/heníčha/héčha (I am/you are/he is a man).

In order to express the statement "I am a doctor of profession," one has to say pezuta wičháša hemáčha. But, in order to express that that person is THE doctor (say, that had been phoned to help), one must use another copula iyé (to be the one): pežúta wičháša (kiŋ) miyé yeló (medicine-man DEF ART I-am-the-one MALE ASSERT).

In order to refer to space (e.g., Robert is in the house), various verbs are used, e.g., yaŋkÁ (lit.: to sit) for humans, or háŋ/hé (to stand upright) for inanimate objects of a certain shape. "Robert is in the house" could be translated as Robert thimáhel yaŋké (yeló), whereas "there's one restaurant next to the gas station" translates as owótethipi wígli-oínažiŋ kiŋ hél isákhib waŋ hé.

Constructed languages

The constructed language Lojban has multiple sorts of copula. The most common, cu, is used to separate any noun phrases before the predicate from the predicate, and is always optional. The others may be used when the other part of the sentence is another noun phrase, but are sometimes viewed with distaste in the Lojban community, because all words that express a predicate can be used as verbs. The three sentences "Bob runs", "Bob is old", and "Bob is a fireman", for instance, would all have the same form in Lojban: "la .bob. cu bajra", "la .bob. cu tolcitno", and "la .bob. cu fagdirpre". There are several such copulas: me turns whatever follows the word me into a verb that means to be what it follows. For example, me la bob. means "to be Bob". Another copula is du, which is a verb that means all its arguments are the same thing (equal).[20]

The E-Prime language, based on English, simply avoids the issue by not having a generic copula. It requires instead a specific form such as "remains", "becomes", "lies", or "equals".

Esperanto uses the copula much as English. The infinitive is esti, and the whole conjugation is regular (as with all Esperanto verbs). In addition, adjectival roots can be turned into stative verbs: La ĉielo bluas. "The sky is blue."

Likewise, Ido has a copula that works as English "to be". Its infinitive is esar, and, as is the case in Esperanto, all of its forms are regular: The simple present is esas for all persons; the simple past is esis, the simple future is esos, and the imperative is esez, among a few more forms. However, Ido also has an alternative irregular form for the simple present ("es"), which some Idists frown upon. The possibility to turn adjectives and even nouns into verbs also exists, although this is mostly done by means of an affix, on top of the verbal endings. The affix is "-es-". So, "The sky is blue." can be said as "La cielo bluesas". As can be seen, the suffix "-es-" plus the verbal desinence "-as" are simply the verb "to be" annexed to the adjectival or nominal root.

Interlingua speakers use copulas with the same freedom as speakers of Slavic, Germanic, and Romance languages. In addition to combinations with esser ('to be'), expressions such as cader prede ('to fall prey') are common. Esser is stated, rather than omitted as in Russian.

See also

Notes

  1. See the appendix to Moro 1997 and the references cited there for a short history of the copula.
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  3. See Everaert et al. 2006.
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  5. Kneale - Kneale 1962 and Moro 1997
  6. See Moro 1997, and "existential sentences and expletive there" in Everaert et al. 2006, for a detailed discussion of this issue and a historical survey of the major proposals.
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  14. Myles Dillon and Donncha ó Cróinín, Irish, Teach Yourself Books, Saint Paul's House, Warwick Lane London EC4. Lesson VIII, "The Copula", p. 52
  15. http://www.teanglann.ie/ga/fgb/rith
  16. Howe 1990. Source for most of the Haitian data in this article; for more details on syntactic conditions as well as Haitian-specific copula constructions, such as se kouri m ap kouri (It's run I progressive run; "I'm really running!"), see the grammar sketch in this publication.
  17. Valdman & Rosemond 1988.
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  20. Lojban For Beginners

References

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  • Lua error in package.lua at line 80: module 'strict' not found. (See "copular sentences" and "existential sentences and expletive there" in Volume II.)
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  • Moro, A. (1997) The Raising of Predicates. Cambridge University Press, Cambridge, England.
  • Tüting, A. W. (December 2003). Essay on Lakota syntax.
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