What are plural object pronouns?

A plural pronoun is a pronoun that takes the place of a plural noun or two or more nouns. Example:

• parents = they
• mom and dad = they

An object pronoun is a pronoun that takes the place of a noun as the object of a verb or a preposition.

The object pronouns are: me, us, you, him, her, it, them, whom.

The plural object pronouns are: us, you, them, whom.

Examples:

• I bought them at a garage sale. (object of the verb 'bought')
• Mom made lunch for us. (object of the preposition 'for')
• To whom did you send invitations? (object of the preposition 'to')

Note: The second person pronoun 'you' functions as singular and plural, as subject and object (you can't go wrong with 'you'). The pronoun 'whom' functions as singular or plural.