City University of Hong Kong CLASS CLASS
Making Sense of Grammar
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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) | 270 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 (820 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 (860 points)

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913 questions
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5,513 users