题目内容：

help others is neccessry.还是helping others?
help others 做主语是名词结构么?
可是已经有others了啊？

优质解答

help others is neccessry.是不对的
动词不能做主语.
To help others is necessary.
不定式可以做主语
Helping others is necessary.
动名词作主语