Copula

In linguistics, a copula is a word that is used to link the subject of a sentence with a predicate (a subject complement or an adverbial). Though it might not itself express any action or condition, it serves to associate the subject with a predicate that could not stand by itself.

A copula is sometimes (though not always) a verb or a verb-like part of speech. (in English primary education grammar courses it is often called a linking verb).

The term is generally used to refer to the main copular verb in the language: in the case of English, this is "to be". It can also be used to refer to all such verbs in the language: in that case, English copulas include, "to be", "to become", "to get" and "to seem".


Contents

The copula in English

Use

We can identify several sub-uses of the copula:

  • Identity: "I only want to be myself." "When the area behind the dam fills, it will be a lake." "The Morning Star is the Evening Star." "Boys will be boys." "I yam what I yam" (Popeye).
  • Class membership. To belong to a set or class: "She could be married." "Dogs are canines." "Moscow is a large city."
  • Predication (property and relation attribution): "It hurts to be blue." "Will that house be big enough?" "The hen is next to the cockerel." "I am confused." Such attributes may also relate to temporary conditions as well as inherent qualities: "I will be tired after running." "Will you be going to the play tomorrow?" (see below)

The copula "to be" also has some non-copular uses, including:

  • As an auxiliary verb:
    • To form the passive voice: "I was told you wanted to see me"
    • To add continuous aspect to tenses: "It is raining"
  • Meaning "to exist": "I want only to be, and that is enough." "God is" (a way some theists assert their theism). "There's no sense in making a scientific inquiry about what species the Loch Ness Monster is, without first establishing that the Loch Ness Monster indeed is."

Note that the auxiliary verb function derives from the copular function; and, depending on one's point of view, one can still interpret the verb as a copula and the following verbal form as being adjectival.

Conjugation

As in most Indoeuropean languages, the English copula is the most irregular verb, due to constant use. Most English verbs (traditionally known as "weak verbs") have just four separate forms, e.g. "start", "starts", "starting", started". A large minority of verbs (traditionally known as "strong verbs") have five separate forms, e.g. "begin", "begins", "beginning", "began", "begun". "To be" is a very special case in having eight forms: "be", "am", "is", "are", "being", "was", "were", "been". Traditionally, it had even more, including "art", and "wert".

In philosophy

In ontology, philosophical discussions of the word "be" and its conjugations takes place over the meaning of the word is, the third person singular form of 'be', and whether the other senses can be reduced to one sense. For example, 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. Of course, the gerund form of "be", being, is its own (vexed) topic: see being and existence.

The copula in other languages

Languages tend to use the copula in quite different ways.

In Indo-European languages, the words meaning "to be" (originating in stem *es) often sound similar to each other. Due to the high frequence of their use, their inflection retains a considerable degree of similarity in some cases. Thus, for example, the English form is is an apparent cognate of Russian jest', in spite the fact that the two belong to language groups that had split at least three thousand years ago and have had very little interaction since (twentieth-century borrowings notwithstanding).

Chinese

In Chinese, both states and qualities are generally expressed with specific state verbs, without a copula, e.g. a verb "to be tired" (累 lèi), a verb "to be hungry" (饿 è), a verb "to be located at" (在 zài), a verb "to be stupid" (笨 bèn) and so forth. These descriptive verbs are usually preceded by an adverb such as 很 hěn ("very") or 不 ("not").

Only sentences with a noun as the complement (e.g. "this is my sister") use a specific verb "to be": 是 shì. This is used frequently: for example, instead of having a verb meaning "to be Chinese", they say "to be a Chinese person", using 是 shì.

N.B. The transcriptions given in italics reflect standard Mandarin pronunciation and use the Pinyin system.

Japanese

Japanese has two verbs translating as "to be": ある aru for existence, used of inanimate objects and plants; いる iru for the same, used of animals and people. Another form of the copula, だ da, cannot be given a corresponding part of speech in English, but is used to equate nouns and to attribute な na adjectives. In formal speech, its formal conjugation です desu is used to attribute い i adjectives as well. In informal speech, だ is unnecessary when using an い adjective.

Note: Japanese verbs and adjectives conjugate differently depending on the level of politeness. All examples are shown with the "plain" form, used between friends. Japanese syntax is very different from English, with verbs coming at the end of the sentence. The translations are literal translations, and cannot be compared word-for-word with English.

For example, to say that "the book is on the table" in Japanese, you would use ある aru.

  • "The book is on the table." 本はテーブルにある。 (Hon wa te-buru ni aru.)
  • "Kim is here." キムはここにいる。 (Kimu wa koko ni iru.)
  • Noun equation: "I am an American." 私はアメリカ人だ。 (Watashi wa amerikajin da.)
  • Adjective: "Amanda is pretty." アマンダはきれいだ。 (Amanda wa kirei da.)
  • "This is fun." これは楽しい。 (Kore wa tanoshii.)

Romance languages

A feature of most Romance languages is the coexistence of two different verbs meaning "to be", the main one from the Latin SVM, and a secondary one from STO. The essential different is that the former usually refers to essential characteristics, whilst the latter refers to states and situations, e.g. "Bob is old" versus "Bob is here".

In Spanish, for example, the quite high degree of verbal inflection, plus the existence of two copulae, means that there are 105 separate forms to express the eight of English, and one of Chinese.

See Romance copula.

Russian and Hungarian

In languages such as Russian or Hungarian, nouns do not have a copula between them (Russian: ja chelovek "I'm a (hu)man"; Hungarian: ö ember "he is a (hu)man").

To recycle the above examples ("Bob is old" versus "Bob is here"), Hungarian only uses a copula in the latter case with regard to third person (singular/plural) (Róbert van itt), but not in the first example (Róbert öreg). This is to relate a subject to a more temporary condition/state taking place in space (very often in the sense of Lojban zvati).

In Russian, the verb byt’ is the infinitive of "to be". The third person singular, jest’ means "is" (and, interestingly enough, it is a homonym of the infinitive "to eat"). As a copula, it can be inflected into the past (byl), future (budet) and subjunctive (byl, by) forms. A present tense (jest’) exists; however, it almost never used as a copula, but rather omitted altogether or replaced by the verb javlatsa (to be in essence). Thus one can say:

  • Ona byla krasivoj = "she was beautiful" (adjective in instrumental case)
  • Ona krasivaja = "she is beautiful" (adjective in the nominative case)
  • Ona javlajetsja krasivoj = "she is beautiful" (adjective also in instrumental)

But not (except for archaic effect)

  • *Ona jest’ krasivaja = "she is beautiful"

Turkish

Despite being an extremely regular agglutinative language, Turkish forms its "being" verb differently from other verbs, just as "to be" in English has twice as many forms as most of its other verbs.

Artificial languages

The artificial language Lojban has no copula at all, because all words that express a predicate can be used as verbs. The three sentences above would all have the same form in Lojban: la bob. bajra, la bob. tolcitno, and la bob. fagdirpre.

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 in English. However, as with the rest of Esperanto grammar, there are no irregularities. The infinitive is esti, and the whole conjugation is regular.

Existential usage

The existential usage of "to be" is distinct from and yet intimately related to its copulative usage. In language as opposed to formal logic, existence is a predicate rather than a quantifier, and the passage from copulative to existential usage can be subtle. For example:

  • Japanese: Wagahai wa neko de aru, namae wa mada naiI am a cat. As yet, I have no name. — Soseki Natsume
  • English: To be or not to be, that is the question. — Shakespeare
  • English: [Why climb Mount Everest?] Because it is there. — George Mallory
  • Russian: Страна, которую ищут дети, есть [Strana, kotoruju ishchut djeti, jest'] – That land we yearn for in our childhood is there. — Prishvin
  • French: Je pense, donc je suis.I think, therefore I am. — Descartes
  • Latin: Cogito ergo sum.I think, therefore I am. — Descartes


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