go swim还是go swimming 为什么

go swim还是go swimming 为什么 go together for swimming还是swim .为什么? lets go (swimming/swim) i am go swimming还是i am go to swim go to swim 是否等于go swimming? go swimming=go ____ a swim I like to go fishing and swim .用swim还是swimming 去游泳怎么说是go to swim吗?还是go swimming 用go skating and swimming还是go skating and go swimming?为什么? swim可以作名词为什么是go swimming 而have a swim swim有名词的含义为什么还要用go swimming呢?同样的,go shopping? 我经常去游泳 为什么是 go swimming 而不是 go to swim