Can - Someone has the ability to do something , Must - Someone has to do something/ obligation, Should - It is a good idea to do this/ This is the right action, Might - It is a remote possibility in the future, Have to/ Had to - Necessary action in present and past, Could - A possibility/ Hypothesis, Could have done it - A past possibility, Should have done it - A past obligation/ Expressing a regret,

Modals

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