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助动词和实义动词能做谓语 am is are was were +doing这里的am is are was were 是助动词吗 doing是实义动词吗 doing不是非谓语动词吗

分类: 作业答案 • 2022-01-02 15:27:12
问题描述：

助动词和实义动词能做谓语 am is are was were +doing这里的am is are was were 是助动词吗 doing是
实义动词吗 doing不是非谓语动词吗

答

是助动词，doing是动词现在分词，be+doing一起构成句子的谓语。

答

am is are was were +doing这里的am is are was were 是助动词 doing是 实义动词do的现在分词形式,和 am is are was were 一起构成谓语

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