Two or more subjects linked by a plural verb and taking a plural verb.  What about pink Floyd`s song? Is this a complete error? Why is the subject in the singular and the verb was instead of being? The reason is that this sentence expresses a wish. This is called the subjunctive mind that is used to express an imaginary desire or fact. According to the rule, in this case, the singular subject requires the plural verb. There is also unanimity in the number. For example: Vitabu viwili vitatosha (Two books will suffice), Michungwa miwili itatosha (Two orange trees will suffice), Machungwa mawili yatatosha (Two oranges will suffice). The predicate corresponds in number to the subject, and if it is copulatory (i.e. it consists of a noun/ajective and a verb that agrees on the number with the subject). For example: A k-nyvek ardek voltak “Books were interesting” (a: this: “k-nyv”: book, “erkes”: interesting, “voltak”: were): the plural is marked on the theme as well as on the addjectival and the copulatory part of the predicate.
The agreement generally includes the matching of the value of a grammatical category between different elements of a sentence (or sometimes between sentences, as in some cases where a pronoun agrees with its predecessor or its reference opinion). Some categories that often trigger grammatical chords are listed below. But if you refer to money as an object to be considered separately, then the agreement relates to quantity, either in the singular or in the plural. However, almost all regular verbs have not been used in the past. So the auxiliary verb is used, z.B. you helped, not you helped. By mutual agreement, we refer to the regulatory framework that governs relations between the different parts of the discourse. In the case of the subject and the verb, the rules in English may differ from those of your native language. Therefore, it is not a good idea to limit yourself to translation. It is clear that the basic rules define the verb in the singular for a single subject and the verb in the plural for a plural subject.