Choose the correct forms

1. You
   [should tell|should have told]
   her. It was unfair.
2. She
   [had better|would have been better]
   go and say sorry! Why didn't she do it?
3. You definitely
   [should visit|should have visited]
   the doctor. Let's do it tomorrow.
4. He
   [ought to be|ought to have been]
   more careful. Why didn't he look where he was going?
5. I
   [ought to swim|ought to have swum]
   carefully when I do it in a new place.
6. You
   [had better|would have been better]
   follow the rules when you visit this place.