A modal verb is a kind of verb that is used to express different language functions: ability, possibility, permission, request, obligation, advice, etc. Modal verbs always come before the base form of a verb. The most common modal verbs in English are can, may, could, must, should, have to … All in all, here we have a one-page summary chart illustrating the different meanings of the modal verbs supported by examples. Feel free to download it below.
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