Lesson on CAN/COULD and MAY indicating ability, prohibition, requests, or capability )

The video tutorial by Mark covers the use of modal verbs 'can', 'could', and 'may'. It explains their functions in expressing ability, possibility, permission, requests, and offers. The tutorial provides formulas for constructing positive, negative, and interrogative sentences using these modals. Examples illustrate how 'can' is used for present abilities, 'could' for past abilities or conditional situations, and 'may' for formal permissions and possibilities. The video also highlights the differences between ability and capability, and the formal and informal contexts for using these modals.

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