1. 过去进行时由“主语+was/were + doing”构成
EX： We were having supper when the phone rang. 我们正在吃晚饭时电话响了。
2. 过去进行时的否定式由“主语+was/were not +doing”构成
EX： This time yesterday Jack was not watching TV. He was repairing his bike. 昨天这个时候，杰克不是在看电视，而是在修理自行车。
3. 过去进行时的疑问式由“was/were +主语+doing”组成
EX： Were you playing basketball at four yesterday afternoon? 昨天下午四点你们在打篮球吗？ 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=Was/Were+主语+doing+其它
答语：Yes,主语+was/were.或No主语+wasn't/weren’t.
特殊疑问句=特殊疑问词+一般疑问句+其它 1、We were having supper when the phone rang. 我们正在吃晚饭时，电话响了｡
2、This time yesterday Jack was not watching TV. 昨天这个时候杰克没看电视。
3、He was repairing his bike.他在修理自行车。
4、When/While we were having supper, the light went out. 我们正在吃饭时，灯熄灭了。
5、While we were talking, the teacher came in. 当我们正在谈话时,老师进来了。
6、While he was waiting for the bus, he was reading a newspaper.他边等车边看报。
7、He was cleaning his car while I was cooking. 他擦车时，我正在做饭。
8、Tom was getting up at six o’clock every day that week. 汤姆那一周里每天都是六点钟起床。
