We went swimming in the river,这句为什么swim不用过去式呀?

We went swimming in the river,这句为什么swim不用过去式呀? She went swimming in a red swimming suit.可以吗 we went there in We can e____ swimming in summer 英语过去式的句子的动词是不是要加ing?例如 In the afternoon we went ( 　　）A．swin　　B．swam　　C．swimming we went swimming instead1of having a picnic用同意句表达 we ——have a picnic.we went swimming ——. We went to the b______last weekend,we saw many people swimming there. 关于独立主格结构的问题with We swimming,We went to have a dinner went swimming 是什么用法 We ofter ()(swim)in the swimming pool in summer. We enjoy swimming in hot weather in the swimming pool.对hot提问. We went to the zoo, we have to feed the fish, fiWe went to the zoo, we have to feed the fish, fish swimming in the water. here the elephant, the elephant is running. the elephant in the side of the tiger, The tiger in the sleeping. the monkey we went there after/in five days. then we went（ ）in the lake _,we went swimming.A Being a hot dayB It being hot选哪一个, （）,we went swimming.填being a hot day还是 it being hot.为什么? The swimming pool looked ------------and we went for a swim.(invation) I went swimming in the sea( )下面有选项 often everI went swimming in the sea( )下面有选项often every mrning yesterday