do,does,did,can,could,should都是什么词?答:do,does,did,可做行为动词,也可做助动词 can,could,should 是情态动词,后跟动词原形 I often do my homework at home. 行为动词 Do you usually play basketball?助动词 He did his homework last night.行为动词 He can swim.
英语中的情态动词有哪些?答:情态动词有:can, could, may, might, ought to, have to, need, shall, should, will, would, dare 情态动词有can (could), may (might), must, have to, shall (should, will (would), dare (dared), need (needed), ought to等。 情态动词无人称和数的变化;不能单独使用,必须与其...