by the time 引导从句,主句还可以用过去时吗?

问题描述:

by the time 引导从句,主句还可以用过去时吗?
比如By the time we left, we only needed a handful of bed and breakfasts .
by the time we left we felt like we were saying goodbye to friends .
什么情况下呢?

1 如果表示动作就用过去完成时:
BY THE TIME SHE ARRIVED,HE HAD LEFT/ HE HAD GOT EVERYTHING READY.
2 如果表示状态就用一般过去时:
BY THE TIME SHE ARRIVED,HE WAS AWAY / HE WAS READY TO LEAVE.