在句子中,是“going swiming”还是“go swiming”为什么?

在句子中,是“going swiming”还是“go swiming”为什么? 为什么i will go swiming 中的swiming要加ing, go swimming里哪个是动词?是is good at going swiming还是is good at go s 请问i'm good at swiming 中 AT SWIMING是作状语还是宾语 it's good for you it is ?_today.let us go swiming. go swiming/shopping、do some washing, 英语swim的现在分词是swiming还是swimming?还是都行? 超基础go to swim和go swiming They are going to__ A.swim B.swiming C.swimming 为什么swim变正在进行时变swimming而不是swiming Does helen like swimming?为什么要填swiming swiming是动名词形式,swimming是现在分词形式,