当从句出现was/were doing,从句谓语用什么时态？

Question

如题所述

Answer 1

从句是过去进行时态was/were doing,主句谓语用过去时态,也可以是过去进行时态。When I was singing, my mom called me.

I was reading while my mom was cooking.

Answer 2

你这个问题问的不具体，你是想问主句用的是was/were doing ,when引导的从句是用什么时态是吧？
我给你写个例句吧，比如 He was doing
his homework when his mother came in.
这种时候一般从句使用一般过去式,这个句式当中的when翻译成，“正在这时”。