我去学校用英文怎么说过去式

"去"过去式叫做 "went"，来源是英语源自古代北欧语，其中"go"的过去式就是"went"。

举几个例子：

I went to school yesterday. (昨天我去了学校。)
She went to the store to buy some groceries. (她去商店买了一些杂货。)
They went on a trip last weekend. (上个周末他们去旅行了。)

总之，"went"就是"go"的过去式，用来表示过去的动作。