The document provides instruction and rules for subject-verb agreement in English. It defines subject-verb agreement and lists five rules: 1. Collective nouns are usually singular when regarded as a unit. 2. Use a singular verb with "the number of" and a plural verb with "a number of". 3. Words like "everybody", "nobody", and "somebody" take singular verbs. 4. "Neither" and "either" are singular and take singular verbs even when referring to two things. 5. Subjects joined by "and" take a plural verb. It also asks what an antecedent is in relation to a pronoun and