Auxiliary and Modal Verbs 2
Ability [can, could, can’t, couldn’t, could have, couldn’t have] She can speak several languages. He could swim like a fish. (general ability). I can see you if you raise your hand. (specific ability pertaining to a specific time and case) I couldn't see you. She could have asked for her share, but she didn't want to. I could have demanded same privilege. [but I didn’t] Belief [must, will, would,] She must be above 70 years. He will surely help if he is convinced. Since it is so hot and humid during the day, it would rain by late afternoon.
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