动词的分类
助动词:在句子中充当成分,没有实际意义
实义动词:有具体含义的词(基本能够做出来的词)
系动词:
(1)be 动词 am is are
(2)保持 keep remind
(3)变化 become
情态动词:后面必须接动词原形,情态动词和动词一起构成动词短语
常见的情态动词:
can(could);may;might;must;need;ought to; dera(derad);shall(should);will(would)
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