How to form a question:
First: WH questions.
- In order to form a question in the past simple; you need to use an auxiliary verb which is (DID).
For Example:
1. I watched a movie last night.
- if you want to ask a question with what ( to ask for information about things or people).
put (what) + auxiliary verb (did) + (Subject) + verb in base form.................................?
So the question will be:
- What did you watch last night?
Another example: