Use of Can+Can be+Could+Could be- by Muhammad Tayyab

In this video, Muhammad Tayyyab explains the use of can and could and differentiate between both model verbs. He also details the use of can be and could be. This video is a comprehensive lecture on the active and passive voice of can and could. It explains every formula with sufficient examples. This video is helpful to understand the use of model verbs and the difference between the commonly used model verbs.
You can find more informative lectures to improve your grammar on this channel. Check the following links
All English Tenses in 30 Minutes:
All Parts of Speech:
Noun and Its Types:
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