过去式的肯定句,否定句,疑问句的结构

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/06/07 15:39:01

过去式的肯定句,否定句,疑问句的结构

1.be- was- were,否定句：was not= wasn't,were not= weren't,一般疑问句把was,were提前到句首
如：I was at home yesterday.
I wasn't at home yesterday.
Were you at home yesterday?
Where were you yesterday?
2 行为动词：主语+ 过去式
主语+ didn'g + 动词原形（否定句）
Did+ 主语 + 动词原形（一般疑问句）
如：I played football yesterday.
I didn't play football yesterday.
Did you play football yesterday.
What did you do yesterday?
3 情态动词：如：can
主语 + could +动词原形
主语+ couldn't + 动词原形
Could + 主语 + 动词原形
如：I could swim when I was ten.
I couldn't swim when I was ten.
Could you swim when you were ten?
what could you do when you were ten?
关于一般过去时态,希望对你有所帮助

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