今天下午我们想去游泳英语怎么说

We wanna be gonna go swimming this afternoon.
与外国人交流或者考托福可以这样填，国内的考试就不能这样填了，国内基本教的是中式英文，你如果照着这个来，老师看不懂就会骂你了。

we would like to go swimming
补充一下，楼上那个纯粹凑数字。老外听着也别扭。we want to be going to go swimming。。。。。外国人说i wanna go swim就可以了

分不同时态，如果你侧重将来时就是We want to go swimming this afternoon.如果是叙述过去的事情，就用过去时：we wanted to go swimming this afternoon.

we are going to go swimming this afternoon... 一般将来时，最简单正确易用的...

We are going to go swimming this afternoon.

楼上的全都不识数.