swimming 是
动名词没错,但不是句子的宾语。 因为go这里是
不及物动词,句子没有宾语。
swimming这里是做状语,且表目的。
词典对这一用法的解释是:[ I ] to move or travel somewhere in order to do something,
表达的是, I will go to the
swimming pool in order to swim. 或者I will go for a swim.
该词典词条下的例句,注意go的词性这里是[I] 不及物动词:
We go shopping every Friday night.
I've never gone skiing.