1. Consider the subject closer to the verb of two or more subjects joined by "or" and "nor". For example, for "or", Either students or their teacher (the singular subject) leads (the singular verb) the opening of the assembly, whereas for "nor", Neither my mother nor I (the plural subject) understand (the plural verb) these directions.
2. If there is a phrase that comes between the subject and the verb, consider the subject and not the pronoun in the phrase. For example, The teacher (the main singular subject) as well as her students walks (the main singular verb) to the library.
3. Words such as "each" and "nobody" are singular, so these words require a singular verb. For example, Nobody (the singular subject) remembers (the singular verb) who did the crime last week.
4. If there are words that always comes in pairs, use plural form of the verb. For example, My jeans (the plural subject) are (the plural verb) made of pure cotton.
5. Sentences with collective nouns that is doing a same thing require a singular verb, whereas sentences with collective nouns that are doing a different things require a plural verb. For example, for sentence with the collective noun that is doing same thing, The troop of soldiers (the singular noun) is (the singular verb) running, whereas for sentence with the collective noun that are doing different things, The troop of soldiers (the plural noun) are (the plural verb) doing different trainings.
6. A singular subject requires a singular verb, whereas a plural subject requires a plural verb. For example, in singular subject with singular verb, Farhad (The singular subject) attends (the singular verb) classes regularly, whereas in plural subject with plural verb, The boys (the plural subject) attend (the plural verb) classes regularly. This rule is exempted to sentences that starts with pronouns. For example, I (the plural subject) wash (the plural verb) my hands regularly. Note that the pronoun used in the sentence as example is the plural subject because the verb, "wash", is in plural form.
7. Compound subjects that are connected by "and" require a plural verb. For example, Farhad and Pamitha (the plural subject) are (plural verb) eating together during the lunch time.
8. Nouns that end with -s but are not considered plural require singular verb. For example, Physics (the singular subject) is (the singular verb) the most difficult subject.
9. Words, such as "here" and "there", are not subjects, so the subject must be placed after the verb when the sentence starts with these words. For example, There is (the singular verb) my tennis racket (the singular subject) or There are (the plural verb) my tennis rackets (the plural subject).
