The form be able to can be used in both the present and the past and functions in exactly the same way as can and couldĪged two, I wasn't able to use a computerĪlthough can/ could and be able to in the present and past are the same in many situations, it is important to remember that can/ could can be used for general abilities but be able to can be used for specific abilities or specific moments when abilities are used. Modal verbs 1 - exercises Modal verbs of deduction Modal verbs - short answers Ability: can - could - might. The students have to fill in the gaps by choosing one of the options provided. When we want to know about someone/ something else's ability in the pastĪn alternative to both can and could is be able to. 30 sentences to practise modal verbs (present, past, perfect forms). bring me a glass of cold water (Request) (Correct)(Incorrect) 3. When we want to know about someone/ something else's ability in the present Just as would can be used as the past of will could can be used as the past of can might can be used as the past of may and should can be used as the past of shall.The auxiliary must can refer either to the present or to the past. When we do not have the ability in the past Relationships among the modal auxiliaries. 3 of 9 It MUST not have been the best cake you ever made, but it was. When we do not have the ability in the present Modal Perfects 1 of 9 You went to Moscow in February 2 of 9 We MIGHT have stayed home. When we want to describe the ability to do something in the past we use could, the past form of can. She could speak French when she was a child, but now she has forgotten it. Past: could / couldnt (for general ability) I could read when I was four. When we want to describe the ability to do something in the present we often use can. Present: can / cant (for both general and specific ability) I can play the piano.
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