i was doing是什麼時態

was doing,were doing例句：

1、I was wondering if you were doing anything this weekend.

我想知道這個週末你是否要做什麼。

2、While they were doing their homework, I was doing the laundry.

他們在做家庭作業的.時候，我正在洗衣服。

3、It was the locals who felt like what they were doing was dangerous.

當地人覺得，他們這麼做是很危險的。

4、He was doing this for himself, not for his father.

他這麼做是爲了自己，不是爲父親。

5、He knew exactly what he was doing.

他清楚地知道自己在做什麼。