Perfect Modal Verbs List and Example Sentences;
| Modal | Example |
| Would have | If I had guessed the future, I would have taken some precautions against what would happen. |
| Could have | He could have taken the flight. |
| May have | We may have passed the math exam, but it was in Spanish. |
| Might have | You might have sold the car, if you really needed the Money. |
| Should have | You should have listened to the teacher. |
| Must have | We must have been crazy! |
| Shouldn’t have | He shouldn’t have told the. |
| Needn’t have | You needn’t have bought it, because I have already. |
| Ought to have | You ought to have warned me earlier. |
