In languages, agreement is a form of cross-reference between different parts of a sentence or phrase. Agreement happens when one word changes in form depending on which other words it is being related to. These other words are called its arguments. Argument may refer to: (in logic) a logical argument, that is, an attempt to prove a demonstration of the truth of a conclusion based on the truth of a set of premises (in mathematics) at least three different things: a parameter or independent variable that is the input to a...

For example, one does not say "I is" in English, because "is" cannot be used when the subject is "I". The word "is" is said not to agree with the word "I". This is why the usual form is "I am", even though the verb still has the same function and basic meaning.

Functions

Agreement often adds redundancy to languages. This allows meaning to be carried when communications are not optimal, or allows certain other words to be omitted; in some European languages, for example, pronouns as the subjects of verbs can often be left out, because the ending of the verb agrees with them, showing which pronoun was intended.

An example of why agreement is useful in English is the distinction between "he", "she", "it" and "they". These agree with a noun in gender and number. If the same form were used the whole time, this would often lead to complications.

In addition, agreement allows word order to be varied further; for example, if there are two nouns in a sentence, and an adjective could only possibly agree with one of them, it is no longer necessary to place the adjective near to the noun in the sentence. Word order, in linguistic typology, refers to the order in which words appear in sentences across different languages. ...

In some languages, a word has to agree with many others in the sentence. For example, a verb might take different endings depending not only on the subject, but also on the direct and indirect objects, or even the addressee (who may well not be overtly mentioned.) Agreement can therefore make the morphology of a language much more complex. Morphology is a subdiscipline of linguistics that studies word structure. ...

Words often agree in properties such as number, person, gender, and case. Number, in linguistics, is a grammatical category used to express the quantity of objects referred to by a noun. ... Grammatical person, in linguistics, is deictic reference to the participant role of a referent, such as the speaker, the addressee, and others. ... In linguistics, grammatical genders, also called noun classes, are classes of nouns requiring different agreement forms on determiners, adjectives, verbs or other words. ... In linguistics, declension is a feature of inflected languages: generally, the alteration of a noun to indicate its grammatical role. ...

Examples

Languages can have no agreement whatsoever, as in Japanese; barely any, as in English; a small amount, as in spoken French; a moderate amount, as in Greek or Latin; or a large amount, as in Hungarian. The English language is a West Germanic language that originates in England. ... Latin was the language originally spoken in the region around Rome called Latium. ...

English

Modern English does not have a particularly large amount of agreement, although it is present. Verbs have person and number, and agreement through gender and number occurs, in a non-productive sense, for pronouns.

All regular verbs in English agree in the third-person singular of the present indicative by adding a suffix of either "-s" or "-es". The latter is generally used after stems ending in the sibilants "sh", "ch", "ss" or "zz" (e.g. "he rushes", "it lurches", "she amasses", "it buzzes".) In linguistics, many grammars have the concept of grammatical mood, which describes the relationship of a verb with reality and intent. ... Suffix has meanings in linguistics, nomenclature and computer science. ... A sibilant is a type of fricative, made by speeding up air through a narrow channel and directing it over the sharp edge of the teeth. ...

Present tense of "to love":

There are not many irregularities in this formation:

"to have", "to go" and "to do" render "has", "goes" and "does".

The highly irregular verb "to be" is the only verb with more agreement than this in the present tense (with the possible exception of the defective "will".)

Present tense of "to be":

Defective verbs are those which cannot be fully conjugated; in English, they have no infinitive, and no past participle. Also the past tenses of "should" and "must" are identical with the present, and can therefore be used only in a subordinate clause, to avoid ambiguity. A defective verb is a verb with an incomplete conjugation. ... In grammar, the infinitive is the form of a verb that has no inflection to indicate person, number, mood or tense. ... In linguistics, a participle is an adjective derived from a verb. ... A clause is a group of words consisting of a subject (often just a single noun) and a predicate (sometimes just a single verb). ...

"He MUST come." - present tense

"I told him that he MUST come." - past tense

In English, defective verbs generally show no agreement for person or number, and those in English are as follows: "can", "may", "shall", "will", "must", "should", "ought". All except "will" and "ought" originate from a Germanic preterite-present verb. The preterite-present verbs are a small group of anomalous verbs in the Germanic languages. ...

However, some users show agreement of "will", whose present and past tenses respectively are used in the formation of the future and conditional.

Future tense of "to be":

Emphatic future tense of "to be":

In Early Modern English agreement existed for the second person singular of all verbs in the present tense, as well as in the past tense of some common verbs. This was usually in the form "-est", but "-st" and "-t" also occurred. Note that this does not affect the endings for other persons and numbers. Early modern English is a name for the modern English language the way it was used between around 1485 and 1650. ...

Example present tense forms: "thou wilt", "thou shalt", "thou art", "thou hast", "thou canst". Example past tense forms: "thou wouldst", "thou shouldst", "thou wast", "thou hadst", "thou couldst"

Note also the agreement shown by to "to be" even in the subjunctive.

Imperfect subjunctive of "to be" in Early modern English:

However, for nearly all regular verbs, a separate "thou" form was no longer commonly used in the past tense. Thus the auxiliary verb "to do" would be used, e.g. "thou didst help" and "thou didst save", not "thou helpedst" nor "thou savedst". Most modern English speakers think of thou as a relic of Shakespeares day Thou is the second person singular pronoun of the English language. ... Most modern English speakers think of thou as a relic of Shakespeares day Thou is the second person singular pronoun of the English language. ... In linguistics, an auxiliary or helping verb is a verb whose function it is to give further semantic information about the main or full verb which follows it. ...

Third person singular pronouns agree in gender, but this is not a productive use. Only things that possess natural gender (such as people and sometimes animals) can be referred to as "he" or "she", and everything else must be considered an "it". In linguistics and grammar, a pronoun is a pro-form that substitutes for a noun or noun phrase with or without a determiner, such as you and they in English. ... In linguistics, natural gender refers to biological sex, i. ...

Pronouns of the first and third persons agree with their antecedents in number. "this" and "that" become "these" and "those" to agree with plural nouns, whether used as pronouns or as articles.

French

Spoken French always distinguishes the first person plural and the second person plural from each other and from the rest of the present tense. The other endings that appear in written French are usually pronounced the same unless the next word starts with a vowel, and thus aren't truly agreeing. The highly irregular verbs être, faire, aller, and avoir possess more agreement than regular verbs. This article should be translated from material at fr:Liaison. ...

Adjectives agree in gender and number with their heads in written French. Again, due to liaison, the suffixes are generally pronounced alike. In practice, this means that feminine adjectives usually end in consonant sounds, while masculine adjectives usually end in vowel sounds. Irregular adjectives that decline more fully or not at all do exist. The participles of verbs agree in gender and number with the subject or object in some instances. Articles also decline for number and gender. In linguistics, a participle is an adjective derived from a verb. ...

Hungarian

In Hungarian, verbs have polypersonal agreement, which means they agree with more than one of the verb's arguments. A syntactic verb argument, in linguistics, is a phrase that appears in a relationship with the verb in a proposition. ...

Latin

Compared with English, Latin is an example of a highly inflected language. The consequences for agreement are thus:

Verbs must agree in person and number, and sometimes in gender, with their subjects. Articles and adjectives must agree in case, number and gender with the nouns they modify. Pronouns must agree in number and gender with the nouns they refer back to, but their case is independent.

Sample Latin verb: the present indicative active of "porto"

porto - I carry

portas - you [singular] carry

portat - he carries

portamus - we carry

portatis - you [plural] carry

portant - they carry

Note also that the inflectional endings mean it is not necessary to include the subject pronoun, except for emphasis.

Swahili

Swahili and related languages have numerous noun classes; nouns fall into different classes depending on the properties of that which they describe. Verbs must agree in class with their subjects. Areas where swahili speakers are found This article is about the language. ... In linguistics, grammatical genders, also called noun classes, are classes of nouns reflected in the behavior of associated words; every noun must belong to one of the classes and there should be very few which belong to several classes at once. ...

External links

Agreement Biblio Home Page

Bibliography

• Corbett, Greville (1994) "Agreement". In R.E. Asher (ed.), The Encyclopedia of Language and Linguistics. Oxford: Pergamon Press. 54--60.
• Givon, Talmy (1984) Syntax. A Functional Typological Introduction. Vol 1. Amsterdam: John Benjamins. Chapter 10.
• Moravcsik, Edith A. (1978). "Agreement". In: Joseph Greenberg, (ed.), Universals of Human Language. vol. 4. Stanford: Stanford University Press, 331--374.