You have to wear a uniform. He has to get up early every morning. They don't have to go to school on Saturday. Does she have to work at night? Yes, she does./ No, she doesn't.

You have to wear a uniform. — Мне необходимо носить униформу.
He has to get up early morning. — Ему необходимо вставать рано утром.
They don’t have to go to school on Saturday. — Им не нужно идти в школу в субботу.
Does she have to work at night? Yes, she does/No, she doesn’t. — Ей нужно работать ночью?