Plural antecedents require plural pronouns such as they, them, and their. When two or more people or things are mentioned, plural pronouns must be used. "Maya and Jake brought their lunches" correctly uses the plural pronoun "their" to refer to both Maya and Jake.
Compound subjects joined by "and" typically require plural pronouns. Groups of people, animals, or objects also need plural pronoun agreement to maintain grammatical accuracy.
Special Cases in Number Agreement
Collective nouns like "team," "class," or "family" can be tricky because they represent groups but are grammatically singular. These nouns typically take singular pronouns: "The team celebrated its victory." However, context may sometimes call for plural treatment when emphasizing individual members.
Words like "everyone," "somebody," and "each" are singular and require singular pronouns, even though they may seem to refer to multiple people. Mastering subject-verb agreement singular-plural compound subjects reinforces these agreement principles.