1)I don't play tennis every Sunday.
Do you play tennis every Sunday?
Yes, l do / No, l don't.
2)Jack doesn't live in London.
Does Jack live in London?
Yes, he does/ No, he doesn't.
3) They don't visit grandparents every weekend.
Do they visit grandparents every weekend?
Yes, they do/ No, they don't.
Do not = don't
Does not = doesn't