动词作主语一定要用ing?

问题描述:

动词作主语一定要用ing?
动词作主语前面加ing时 后面一定要用be动词吗 或者 无论什么时候动词作主语后面都要加ing?
1个回答 分类:英语 2014-11-08

问题解答:

我来补答
不一定.动词不定式也可作主语呀.后面也不一定必须用be动词.
Swimming in winter is useful to us .
Swimming in winter does good to us .
To swim in winter is useful to us .
Do you think so !
 
 
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