| MODAL AUXILIARIES |
| They are also called modal verbs or modal auxiliary verbs. They are verbs such as can, may or will that are used with another verb (not a modal) to express possibility, permition, intention, etc. The most important characteristics |
| *Modal verbs have only one form. They have no -ing or -ed forms and do not add -s to the third person singular form. *Modal verbs are followed by the infinitive of another verb without to. An exception is ought to. *Question are formed without do/does in the present, or did in the past, an example: Can I invite Mary? or Should I have invited Mary? *Negative sentences are formed with not or the short form -n`t and do not use do/does or did. *We must consider that modal verbs do not have tense, they are "tenseless", because they cannot be classified in present, past, future or conditional. |
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