为什么用swimming star 而不用 swim star

为什么用swimming star 而不用 swim star lets go (swimming/swim)为什么要选swimming 而不选择swim 为什么swimming pool,running star都有ing? 英语中为什么用go swimming,而不用go to swimming? Swimming is my favourite sport 为什么要用Swimming,而不用Swim Who_____(想要 )to go swimming?Who__wants___(想要 )to go swimming?为什么用 wants 而不用want? i like swimming为什么加ing而i can swim为什么不加ing like后面为什么加动词ING形式为什么只有 i like swimming而不这样说i like swim 是 a swimming star 还是a swimmer star 为什么I can go swimming (swim)加ing而I can see the flowers不加(ing) Look!The man is swimming _______ the lake为什么用across而不用through The ducks are swimming in the river.为什么用介词in,而不用on I like swimming中swimming为什么要用现在分词 she always goes swimming （为什么swimming用ing形式） sometimes i go swimming with my friend 为什么用swimming? My favourite sport is swimming.为什么要用swimming the famous movie star got in the car quickly with him followed by a group of fans为什么用with而不能用and后面的followed是表被动吗?是非谓语动词吗? The film kungfu isn't worth seeing .But there is a film star acting in it.(保持原句）The film kungfu shows nothing ______ ______there is a film star acting in it .问：为什么不能用expect for 而用except that呢?