Plural Adjective Agreement
Hahm, H.-J. (2006b). Agreement encrypted in Russian predicates. In S. Muller (note), Proceedings of the 13th International conference on Head-driven Phrase Structure Grammar (p. 402-420). Stanford: CSLI Publications. In English, the defective verbs usually show no agreement for the person or the number, they contain the modal verbs: can, can, can, must, should, should. In standard English, for example, you can say I am or it is, but not „I am“ or „it is.“ This is because the grammar of the language requires that the verb and its subject coincide personally. The pronouns I and him are respectively the first and third person, just as the verbs are and are. The verbage form must be chosen in such a way as to have the same person as the subject, unlike the fictitious agreement based on meaning.
  In American English, for example, the expression of the United Nations is treated as singular for the purposes of concordance, although it is formally plural. Languages cannot have a conventional agreement at all, as in Japanese or Malay; barely one, as in English; a small amount, as in spoken French; a moderate amount, such as in Greek or Latin; or a large quantity, as in Swahili. An agreement based on grammatical numbers can be made between verb and subject, as in the case of the grammatical person discussed above. In fact, the two categories are often mixed in conjugation patterns: there are specific forms of verbs for the first-person singular, the second plural, etc. Some examples: Another characteristic is the concordance in the entries that have different forms for different sexes: the adjectives correspond in terms of sex and number with the nouns they change in French. As with verbs, chords are sometimes displayed only in spelling, as forms written with different modes of concordance are sometimes pronounced in the same way (z.B pretty, pretty); Although, in many cases, the final consonan is pronounced in female forms, but mute in male forms (z.B. small vs. small). Most plural forms end in -s, but this consonant is pronounced only in contexts of connection, and these are determinants that help to understand whether it is the singular or the plural. In some cases, the entries of the verbs correspond to the subject or object. There is also a consensus between pronouns and precursors.
Examples can be found in English (although English pronouns mainly follow natural sex and not grammatical sex): modern English is not very consistent, although it is present. King T.H., Dalrymple M. (2004) Determiner Agreement and noun conjunction. Journal of Linguistics 40 (01): 69-104 Spoken French always distinguishes the plural of the second person and the plural of the first person in the formal language of each other and the rest of the present in all the verbs of the first conjugation (infinite in -it) except all. The plural first-person form and the pronoun (us) are now replaced by the pronoun (literally: „one“) and a third person of singular verb in modern French. So we work (formally) on Work. In most of the verbs of other conjugations, each person in the plural can be distinguished between them and singular forms, again, if one uses the traditional plural of the first person. The other endings that appear in written French (i.e. all singular endings and also the third plural person of the Other as the Infinitifs in-er) are often pronounced in the same way, except in the contexts of liaison.
Irregular verbs such as being, fair, all and holdings have more pronounced contractual forms than normal verbs. Some adjectives have both an irregular female form and a particular male form, used before a silent voyical or `h`: Link G. (1983) The logical analysis of plural and mass terms: an approach to grid theory. In: R. Beerle, Schwarze C., Stechow A.