高中情态动词最全归纳
情态动词是一种本身有一定的词义,表示说话人的情绪,态度或语气的动词但不能单独作谓语, 只能和其他动词原形构成谓语。
possibility: can / could, may / might
certainty: must, will, should
ability: can / could, be able to
permission: can / could, may / might
requests: can / could, will / would
suggestions: could / may /might, shall