Help:Able to and can
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Can and be able to are both applied to discuss ability. Occasionally they are identical, however sometimes they are not. can is used in the present tense when we have the capability to make something done. As an instance, I can cook. We could also say I am able to cook, and the denotation would be quite much the same. But which one do we prefer? For unofficial English, and for verbal English in particular, people have tendency to use can or can't. Able to and unable to look to be a bit more formal and not genuinely suitable for daily circumstances. Could and can are both modal auxiliary verbs. Be able to is not an auxiliary verb (it is applied the verb be as a main verb). Be able to is not a modal verb. It is just the verb be added to an adjective (able) followed by the infinitive. We frequently use to be able to instead of can. We can merely form the past of can (could). To put can into other tenses we need the phrases to be able to or to be allowed to.