нужно составить 6 предложений с модальными глаголами

Модальных глаголов в английском языке не так уж и много. Can, must, may, ought to, have to, be to, need, should, would, dare, used to модальные глаголы.

I can sing Armenian songs very well.

Mike can run very fast.

His little sister can walk already.

You may go now.

They may travel by sea.

You must work hard on your English.

You must not talk at the lessons.