Modal auxiliary verbs. To uses the verb "to be" as a main verb. The main verb. Possibility and Ability. Infinitive without "to". An auxiliary verb, a modal auxiliary verb. A real question. The main uses of Education and verbs in the English language.
Can, Could, Be able to Can and could are modal auxiliary verbs. Be able to uses the verb to be as a main verb. It is not an auxiliary verb, but we look at it here for convenience. Can Can is an auxiliary verb, a modal auxiliary verb. We use can to: · talk about possibility and ability · make requests · ask for or give permission Structure of Can subject can main verb The main verb is always the bare infinitive (infinitive without to). subject auxiliary verb main verb I can play tennis. - He cannot play tennis. cant ? Can you play tennis? Notice that: · Can is invariable. There is only one form of can. · The main verb is always the bare infinitive. Use of Can can: Possibility and Ability We use can to talk about what is possible, what we are able or free to do: · She can drive a car. · John can speak Spanish. · I cannot hear you.
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