THE SIMPLE PAST: YES/NO QUESTIONS.

*DID + SUBJECT + MAIN VERB?

For example: Did Luis work yesterday?

Answers: Yes, he did/ No, he didn't.

For example: Did you eat breakfast?

Answers:Yes, I did/ No  I didn't.

PAST OF BE: QUESTIONS.

* BE + SUBJECT?

For example: Were you sad?

 Answers: Yes, I was/ No, I wasn't.

For example: Was Jesus at home last night?

Answers:Yes, he was./ No, he wasn't.