modals

A modal verb is a type of verb that is used to indicate modality – that is: likelihood, ability, permission, request, capacity, suggestions, order, obligation, or advice. Modal verbs always accompany the base (infinitive) form of another verb having semantic content. In English, the modal verbs commonly used are can, could, may, might, must, will, would, shall, should, ought to, had better, "have to" and sometimes need or dare. In English and other Germanic languages, modal verbs are often distinguished as a class based on certain grammatical properties.

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