I didn’t be at school yesterday.
wasn't
Did he be at work the other day?
Was he at work the other day?
I didn’t went shopping last Saturday.
didn't go
Did go they to the disco last night?
Did they go to the disco last night?
John flied to Argentina last week.
flew
I were at the restaurant last night.
was
John and Mary was born in 1964.
were
I not finished my homework last night.
didn't finish
Did your family had a nice holiday?
have
What do you did last night?
What did you do last night?
Where were you stay in Washington?
did
Where was you last weekend? I was at home.
were
Did you in class yesterday?
Were you in class yesterday?