hadbeing是什么时态
had doing是过去进行时,表示过去某时正在进行的状态或动作。
例句
We were having supper when the phone rang. 我们正在吃晚饭时,电话响了
过去进行时结构
1. 过去进行时由“主语+was/were + doing”构成.
eg 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.
eg 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.
eg Were you playing basketball at four yesterday afternoon? 昨天下午四点你们在打篮球吗?