City University of Hong Kong CLASS CLASS
Making Sense of Grammar

如何理解有to无do和有do无to的?

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如何理解有to无do和有do无to的?
asked Mar 11, 2019 in Questions about English Grammar by 116070100106zhm (240 points) | 2,053 views

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主语部分有to do,系动词is或者was时，作表语的不定式通常省去to
作介词but,expect,besiders的宾语，前面又有实意动词do时，不定式通常省去to
主语部分暗含to,do,表语中的不定式通常省去to
answered Mar 14, 2019 by 118030200311snd (780 points)
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动词不定式to的省略、连词连接两不定式前面的有do后面的to do 的to省略
answered Mar 14, 2019 by 118030200314lq (820 points)

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