I would rather you ______ quiet during the lesson.

• A. Stayed
• B. Stay
• C. Stays
• D. Staying

Answer: (A)

The key idea is how to use would rather when the action is about someone else. After would rather, the verb in the clause with that person usually takes the simple past form. So in this sentence, stayed is the past simple of stay, and it shows a present/future preference that you remain quiet during the lesson.

Staying is the -ing form, which isn’t used after would rather in this construction. Stay is the base form, which doesn’t fit after would rather with a different subject. Stays is the third-person singular form, which also doesn’t agree with the subject you.

So the correct form, stayed, keeps the pattern would rather + you + past simple, meaning “I would prefer that you remained quiet during the lesson.”