Verbs: Number and Form
It is sometimes difficult to tell whether a verb should be singular or plural. Two situations are especially tricky.
1. When the verb comes before the subject, check the subject carefully to see whether it is singular, plural, or a compound subject. Compound subjects require a plural verb.
Are Lisa and Lynn ready?
2. When a phrase comes between the subject and verb, ignore the nouns in the intervening phrase. It is the subject noun that determines whether the verb is singular or plural.
The box of raisins and nuts was on the table.