was done doing的用法谁来说说~

was done doing的用法谁来说说~
was done doing的用法
谁来说说~

was done doing的用法谁来说说~
was done doing 不算是固定词组 需要拆开分析
was done 是过去时的被动
而后面接的doing 是动词do/done的需要 或者是 处于一直做某事的状态
例如 I was made doing my homework.

was done 是被怎么怎么样了，用于被动语态
was doing 是过去进行时，表示过去没某个时间一直在做什么~