Which sentences are correct?

yakup_firidin

Our English teacher taught us a grammer topic last year but I began to forget it. This grammer topic like that: there are two sentences and the first one is a question sentence second one is a normal sentences

I have just wanted to create that sentence but I am not assure. Should I say "Do you know they are a kind of worm" or "do you know they a kind of worm are " which one is correct

Which sentences are correct?
3 Opinion