时态：过去时

一般过去时

发生在过去的一般情况 主句与从句时态保持一致

did(主动)  /  was/were done(被动)

ex：I changed my mind 

my mind was changed by me

提示词

1.　it is (high) time that句型里that从句的谓语用一般过去式

2.　句子里出现了 yesterday last year just now等表过去时间的词时也用一般过去时

3.　句子中出现 for + 时间段，且动词是瞬间动词 （少出现）

 

过去进行时

was doing （主动）/ was being done（被动）

when you arrived （过去时态）, i was doing homework

 

过去完成时

had done / had being done

i had watched the game for a long time yesterday(过去时间)

过去发生的事情对后来的事情造成了影响 

i had cleared（过去的过去） my room ， i felt（过去） very tired

过去的过去对过去造成影响

 

过去完成进行时

had being doing

by the time jane arrived we had being waiting three for hours 

（完成进行时可以翻译成 "一直" 或者 "已经" ）