求英语过去进行时的语法和要点

Question

听说这个比较难，所以请各位帮帮忙告诉我！请务必讲清楚过去进行时的语法，还有要点，注意事项等。。。。。（有初中老师的可以费心教一下句式呀，就万分感激了！谢谢！）

Answer 1

1.表示过去某一时间内（正在）进行的动作
如：I was doing my homework at 9 p.m. last Sunday.
2.表示一动作正在进行时，另一动作同时正在进行.
(1)用while连接（while只接doing）
例:My mother was cooking while I was doing my homework.(可以持续动作时态一致)
(2）when表示（when可以接doing或did，when后动作时间长，用doing，时间短，用did）
例:I was doing my homework when my mother came in.(间接表达了具体时间)
3.重复的动作
When he worked here, John was always making mistakes.
4.表示过去将要发生的动作
She told us Mr.Lee was arriving here.
肯定句：主语+was/were+doing+其它
否定句：主语+was/were+not+doing+其它
一般疑问句及答语：Was/Were+主语+doing+其它 答语：Yes,I was./No,I wasn't.
特殊疑问句：特殊疑问词+was/were+主语+doing+其它

Answer 2

过去进行时表示过去某时正在进行的情况或动作
大致表现为 was/were doing
一些引导词有while as 等

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