因為go doing 為固定搭配，所以shop需加ing。go shopping中文意思是去買東西

There's a mock-up of the main street where the Goodwins go shopping.古德溫一家購物的那條大街有一個模型街景。

We decided to write off the rest of the day and go shopping.

shop後面直接加s是名詞複數:shops

More than 20 shops were looted.

有20多家商店遭到了搶劫。

There is a shop at the end of this lane .
這條胡同的頂頭有一家商店。

The scene cuts from the shop to the street .
鏡頭從商店轉換到街道。

It 's easy to open a shop but hard to keep it open .
創業容易守業難。

There is a shop at the end of the street .
這條街走到頭有一個商店。

Sale goods in this shop are not exchangeable .
本店貨物售出概不退換。

shop後面直接加s是名詞複數了，shop是名詞要變為複數，用於一定的場合，所以shop後面要直接加s，變為shops