In this English lesson I'll give an introduction, with plenty of examples, on how to use the past modals: must have, should have, would have, and could have. This is a difficult topic for many English learners. I will do my best to make it clear how to use these verbs in some situations.This is by no means meant to be an extensive lesson. In fact, I decided to leave some verbs off the list, and to simply help you learn some of the common ways we use these as native English speakers.I hope this English lesson helps you, and if you want, please let me know in the comments if you want a more advanced class on this in the future.Thanks for watching this English lesson about past modal verbs! Have a great day!Note: This is the audio portion of a Youtube English lesson which you can watch right here: https://www.youtube.com/watch?v=hBogiz8JWWo or find by searching Youtube for, "Bob the Canadian Past Modals"Support the show