Subject-Verb Agreement

pronoun a word that can function by itself as a noun phrase and that refers either to the participants in the discourse (e.g., I, you) or to someone or something mentioned elsewhere in the discourse (e.g., she, it, this).

• They are responsible for overseeing the project from start to finish.
• They said they would be here by noon.
• They totally nailed the presentation.
• They hold the key to our success.