We use ABLE TO/COULD/COULDN'T when we are talking about what happened in a particular situation. - I lost my mobile a few days ago, but I was able to find it., BE ABLE TO is used in all tenses or with the infinitive. - He'd like to be able to play the guitar., CAN has only two forms. (present + past) - I can do it now. But I won't be able to do it later., Sometimes BE ABLE TO is possible instead of CAN/COULD - I'm able to dance = I can dance., We use CAN with: UNDERSTAND, FEEL, SEE, HEAR, TASTE, SMELL, REMEMBER - I can smell something burning!, COULD is used for general ability in the past - She could speak fluent Spanish when she was, COULD is used to show that something is or might be possible - I could do it now, if you like.,

Modal Verbs 3 (Be able to, can, could) for FCE

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