"What did you say?" or "What did you said?"

Question

I was teaching my son and I always get confused which verb I should use, as English is our second language, I asked my son to put the word 'said' in example and he come up with this:

what did you said?

but know there's something wrong so I come a cross this website, so if anyone is reading this can we say :

I know that we can say "what do you say", but i need to know if we can use "what do you said?"

No, you can't. It is a rule of grammar that when "do" is used as an auxiliary verb, as it is in your example, it must be followed by a plain (infinitival) verb form like "say", not past tense "said". — BillJ, Jan 25 '17 at 18:52
This has got to be a duplicate - it's one of the most common questions we get. But I can't quite find an exact duplicate for it. — stangdon, Jan 25 '17 at 18:58

score 1 · Answer 1 · answered Jan 25 '17 at 18:52

This is pretty basic grammar so your question might be closed, but to form a question you use "do" or "did" + the subject + the infinitive form of the verb.

I play tennis -> Do you play tennis?

I ate pizza -> What did you eat?

I went to the store -> Where did you go?

"What did you say?" or "What did you said?"

1 Answers1