过去式变否定句的题

发布网友发布时间：2022-05-05 16:46

共1个回答

热心网友时间：2022-06-27 19:10

一般过去时可以有两种结构：
1. 主系表，否定句在系动词was/ were后面加not.
He was a middle school student two years ago.
否定句: He wasn't a middle school student two years ago.
2. 主谓宾，否定句在主语后面加didn't，动词过去式变为原形。

I took off my shoes at the door.
否定句：I didn't take off my shoes at the door.

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