Unit 5, page 22‐C - DeiseFreire/English GitHub Wiki

MURPHY, Raymond. English grammar in use. Cambridge: Cambridge University Press, 2002. Unit 5, page 22-C.

In questions and negative sentences we use did/didn't + infinitive (enjoy/see/go etc.):

I	enjoyed
she	saw
they	went

	you	enjoy?
did	she	see?
	they	go?

I		enjoy
she	didn't	see
they		go

• I enjoyed the party a lot. Did you enjoy it?
• How many people did they invite to the wedding?
• I didn't buy anything because I didn't have any money.
• 'Did you go out?' 'No, I didn't.'

Sometimes do is the main verb in the sentence (did you do?, I didn't do):

• What did you do at the weekend? (not What did you at the weekend?)
• I didn't do anything. (not I didn't anything)