lets go shopping是什么时态

　　例句：

　　I've got a bit of shopping to do.

　　我要买点东西。

　　In the afternoon they went shopping.

　　他们下午去购物了。

　　I'll do the shopping this afternoon.

　　我今天下午要去购物。

　　I have to go shopping this afternoon.

　　我今天下午得去商店买东西。