In the English language, verbs usually come by subject. But if this order is reversed, the author must reconcile the verb with the subject, not with a noun in front of him. For example: verbs must agree with their subjects in numbers and numbers and sometimes also in sex. Articles and adjectives must correspond, in the case, the number and gender, to the underlyings they change. “The agreement is an important process in many languages, but in modern English it is superfluous, a remnant of a richer system that flourished in ancient England. If it disappears completely, we would not miss it, nor would we say the similar suffix in you. But psychologically, these frills are not cheap. Each speaker who has committed to using it must follow four details in each spoken sentence: case agreement is not an essential feature of English (only personal pronouns and pronouns that have a case marking). The correspondence between these pronouns can sometimes be observed: In English, defective verbs usually show no match for the person or number, they contain modal verbs: can, can, wants, wants, should, should, should. This sentence refers to something someone owns.
That means the computer belongs to John. 2. Use “s” for the current subject/verbal contract. Add “s” at the end of a verb in the contemporary form to agree with the singular theme “him,” “she” or “he” – A question with whom or what a singular verb takes. 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. In English, this is not a common characteristic, although there are certain determinants that appear only with singular or plural subtantiatives: the name Myles always ends in “s”, although it is singular. This means that you have to add the apostrophe after the “s” if you want to show the property with the name Myles. For correct names that end in “s,” it is also agreed to add `s (Myles` duties). The verb must correspond with the subject in number and in person, that is, it must be of the same number (singular/plural) and the person as the subject.
When subjects are connected by or even, etc., the verb corresponds to the nearest subject. (Proximity rule)  Class and number are indicated with prefixes (or sometimes their absence) that are not always the same for subtantives, adjectives and verbs, as the examples illustrate. Most Slavic languages are very curved, with the exception of Bulgarian and Macedonian. The agreement is similar to Latin, for example. B between adjectives and substants in sex, number, case and animacy (if considered a separate category). The following examples are taken from the Serbo-Croatian: here are some specific cases for the verb agreement subject in English: articles, possessive and other determinants also decrease for the number and (only in the singular) for sex, the plural determinants being the same for both sexes. The result is usually three forms: one for the male singular, the other for female singular substitutions and the other for plural forms of both sexes: the agreement between men and women is less common for verbs, although it may still occur.