I don't know swimming.swimming 是名词。I can't swim.是我不能游泳的意思哦。
还有种是 i am not able to swim 不过貌似不常见- -。。i don't know how to swim应该很简单了吧 您也可以用名词swimming来代替swim
I can't swim, 除非特别情况,这个就是我不会游泳的意思
i can‘t swim就是我不会的意思啊,这个就是最简单的说法
i can not swim