- You should be an actor you've missed your vocation, ie you are following the wrong career.
- She ought to have been a teacher, ie She would probably have been a good one.
- You should not criticize him so harshly in his face.
- It's for everybody and we should do our best.
- He said that I should go that day.
- The trial was conducted with due process of law.
- An ineffective person should not be our leader.
- Maybe you should be a hairdresser.
- Teachers should point out students'mistakes then and there.
- You're a wiz at math! You should be a math teacher.