一般过去时was were后加ing么?

一般过去时was were后加ing么?
一般过去时was were后加ing么?

一般过去时was were后加ing么?
was were + doing 是过去进行时

加，sb/st was/were doing something

be V. + Ving
===am/are /is/was/were/will be/ shall be/ + Ving ===进行时态

过去进行时的构成是was/were+doing

was/werw+V-ing 是过去进行式
所以不用加
有was/were是"I was a student"之类的句子