We have some fish

We have some fish

We have some fish
If we ask some fish, what do we have?
See the sentence, first analyze the sentence components, this is a subject predicate object sentence. The content of the question is about some fish
In this sentence, there is no copula (am is are), so when we change questions, we should add do or does. Obviously, we are the first person do.some Fish (some fish), representing something, should use what to ask questions
What is used to ask questions, which means "what"
I hope it will help you to learn English