I go to the gym every morning. My sister prefers to exercise at home. She thinks it is more convenient.
Sentence 2 Analysis:
Predicate (main verb): "prefers"
Subject: "sister" (a noun, third-person singular)
Agreement: "Prefers" is correctly conjugated in the third-person singular form to match "sister."
Sentence 3 Analysis:
Predicate (main verb): "thinks"
Subject: "She" (a pronoun, third-person singular)
Pronoun-antecedent agreement: "She" refers to "sister," and both are third-person
