一般过去时的结构是什么

肯定句：主语+动词过去式+其他
例如：I went to the park yesterday.i was happy yesterday.
否定句：主语+didn't +行为动词原形+其他
主语+was/ were+ not+其他
例如：i didn't come back yesteday.
I wasn't at home last night.
一般疑问句：Did +主语+行为动词原形+其他
Was/ Were +主语+其他
例如：Did you have fun in Beijing?Yes,i did./ No,I didn't.
Were you at school at that time?Yes,I was./ No,I wasn't.
特殊疑问句：疑问词+一般疑问句
例如：What did you do yesterday?I did my homework.

1）was/were+表语
2）实意动词的过去式即动词后加ed（不规则动词除外）
3）There was/were句型

肯定句：主语+动词过去式+其他