It`s quite simple: is the third singular conjugation of the verb that corresponds to the student; are the plural conjugation of the third person that coincides with plural students. In addition to the fictitious concordance, here is a second principle in the game that sounds the use of a plural verb more „correct“ than the singular verb, and this is called the principle of proximity. This means, for example, that in a construction like „many Revelers“, you might be more inclined to choose a form of verb that corresponds to the plural noun that is closer to the verb (Revelers) in the sentence than the more distant singular noun (Crowd): the example (9) is indeed surprising – there are obviously many scientists who are trying to find a cure for HIV, but the verb is always gular. The reason is that you are always followed by a single name (a scientist) and the verb corresponds to that unique name. Sentences (7) and (8) may appear to be false because there are two parents and two boys, but the subject is still considered unique for the purposes of the agreement. More frequent are constructions that „set aside“ a single noun of its plural members (as in the model „a collective name of [members]). On these subjects, speakers and authors often choose to express the verb in the plural: most Anglophones know the basic rule of the verb-subject chord: a singular noun takes a singular verb, and a plural noun takes the corresponding plural. The same rule applies (well or may apply) to neither sentences and one or more instances. In all the examples you have just provided, you can therefore change all instances from either in neither, nor in or in, and the verb remains unchanged. Finally, the verb in constructions of the type „X is Y“ always corresponds to X. Although it is quite easy to approve the English verb with the subject, complex topics can sometimes create problems with the chord by theme. [This sounds very simple, but could be difficult for native speakers of languages in which the subject-verb chord means exactly that the verb and subject carry the same morphs!] If you have z.B. a composite or pluralistic subject that functions as a singular unity, it sometimes seems „natural“ for the subject to take a singular verb, despite formal rules that are the opposite.
Here is a list of some sensitive topics. In the end, it is the context that comes into play, the sentence generally offering a kind of information that emphasizes the pluralistic essence of what is technically a singular noun. With „The couple was seen omitted in a grey car,“ it can be said that two people were seen; Similarly, „The Crew on departure“ reminds many people who work together, suggesting a plurality, and it is this idea that leads a spokesperson to prefer a plural. Key: subject – yellow, bold; verb- green, point out that the verb can change its position in relation to the subject. In a declarative sentence, he follows the subject; The next name of the verb is therefore Y. However, the verb precedes the subject in matters; in this case, the next name to the verb is the first, X.