An appositive is a group of words that explains the noun it follows. The noun it takes the place of is called its antecedent. The pronoun can take the place of one or more nouns. Subject pronouns are used as the subject of a sentence to replace the subject noun. Object pronouns are used in the predicate to replace the noun that receives the action of the verb.
Interrogative pronouns begin interrogative sentences.
Demonstrative pronouns stand alone in a sentence. Possessive pronouns show ownership. Indefinite pronouns name a collective group. It tells what kind, which one, or how many. More than one adjective can be used before a given noun as its modifiers.