情态助动词基本的有十四个:may, might; can, could; will, would; shall, should; must, need, dare, used to, ought to.had better 上述两类助动词的共同特征是,在协助主动词构成限定动词词组时,具有作用词的功能: 1) 构成否定式: He didn't go and neither did she. The meeting might not start ...
It's much better. 好多了。 3、频度副词可放在实义动词的前面,情态动词和助动词的后面。 I often help him these days. 这些日子我经常帮助他。 I always remember the day when I first came to this school. 我常常记得我第一次来学校的那一天。 You mustn't always help me. 你不能老是帮助我。
(4)表示个人意愿或倾向的would rather,had better,might(just) as well:rather than置于句首时。Rather than ride on a crowded bus,he always prefers to ride a bike.(5)Why… / why not…:(6)help 可带to,也可不带to,help sb (to) do sth:(7)but和except:but前是动词do时,后面出现的动词用不...