過(guò)去將來(lái)時(shí)的構(gòu)成是什么？

過(guò)去將來(lái)時(shí)的基本特征，也就是我么年今天所談到的“立足過(guò)去，著眼未來(lái)”。它表示從過(guò)去某一時(shí)間來(lái)看將要發(fā)生的某個(gè)動(dòng)作或存在的某種狀態(tài)。例如：Mary told me that she would go to Shanghai by plane.那么過(guò)去將來(lái)時(shí)態(tài)的構(gòu)成是什么呢？它都有哪些用法呢？

基本構(gòu)成——

A ) would + 動(dòng)詞原形

如He asked me if I would stay here. 他問(wèn)我是否要待在這兒。

B ) was / were going to + 動(dòng)詞原形

如No one knew when he was going to finish his homework.

C ) was/ were ( about ) to + 動(dòng)詞原形

如：He said that they were to leave at six.

She said that the meeting was about to begin.