英语学习中最没意思的就是动名词和现在分词的分类.
合成谓语：现在分词 he is swimming now.
分词状语：现在分词he lay on the grass,looking at the sky.
定语修饰人：现在分词a swimming girl
主语：动名词 swimming is an interesting sport.
宾语：动名词 i like swimming.
定语修饰物：动名词 a swimming pool
其实,大可不用管他是动名词还是现在分词,只要符合经常性反复性习惯性主动性进行性抽象性的行为,就可以使用V+ing来表示.