"do"的三种非谓语动词形式是:
不定式(to do) :不定式由"to"加原形动词构成,表示目的、将来或被动。例如:
She wants to learn French.
动名词(doing):
动名词由动词的-ing形式构成,表示主动或进行。例如:
Swimming is my favorite sport.
分词(现在分词doing和过去分词done)
现在分词表示主动或进行,与动名词形式相同,写作时通常可以互换使用。例如:
The kids are playing in the park.
过去分词表示被动或完成,通常用于完成时态或被动语态。例如:
The book was written by a famous author.
这些非谓语动词在句子中可以充当不同的成分,如主语、宾语、定语、状语等。例如:
主语:To learn a new language requires dedication.
宾语:I like to read books.
定语:Her job is to teach children.
状语:She left the room crying.
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