You look tired. You ought to rest for an hour or two. ✬

You ought to ask him for advice. ✬

You ought to thank him. ✬

You ought to be ashamed. ✬

You ought to ask for your teacher's permission. ✬

You ought not to have spent so much money on your hobby. ✬

You ought to get to work on time. ✬

You ought to see a dentist. ✬

You ought to have come to our party. ✬

You ought to have come to see me yesterday. ✬