過去將來時(shí)的概念：
過去將來時(shí)表示從過去的某一時(shí)間來看將來要發(fā)生的動作或存在的狀態(tài)。過去將來時(shí)常用于賓語從句和間接引語中。過去將來時(shí)的出發(fā)點(diǎn)是過去，即從過去某一時(shí)刻看以后要發(fā)生的動作或狀態(tài)。
過去將來時(shí)的結(jié)構(gòu)：
�。�1）would+動詞原形：
如：She told us that she would try her best to catch up with other classmates this term. 她告訴我們說她將一切努力在本期趕上其他同學(xué)們。
When you asked Li Lei for help, he would never refuse you. 過去當(dāng)你請她幫忙時(shí)，他絕不會拒絕。
（2）was/were going to+動詞原形：
如：He told us that he was going to attend the meeting. 他告訴我說他要參加那次會議。
He said that I was going to be sent to meet her at the railway station.他說將要派我去火車站接她
�。�3）was/were to+動詞原形：
如：The building was to be completed next month. 這座建筑改在下個(gè)月竣工。
Li Lei was to arrive soon. 李蕾很快就要到了。
�。�4）was/were about to+動詞原形：
如：We were about to leave there when it began to rain heavily and suddenly. 就在我們要離開時(shí)，天突然下起了大雨。
He was about to have lunch when the bell rang. 就在他要吃中飯的時(shí)候，門鈴響起來了。
（5）was/were+現(xiàn)在分詞：
如：He was leaving the next day. 他第二天要走了。
We were informed that the leaders were coming to our school soon. 我們接到通知說領(lǐng)導(dǎo)們很快要來我們學(xué)校。
過去將來時(shí)的用法：
�。�1）過去將來時(shí)，一般用于主句為過去時(shí)的賓語從句中。
如：He said he would stay with us. 他說他要與我們呆在一起。
He said he would never go there again. 他說他絕不會再去那兒。
�。�2）過去將來時(shí)，用于虛擬語氣中。
如：If I were you, I would not do that. 要是我是你的話，我就不會那樣做。
If he were here, he would show us how to do it. 如果他在這兒，他就會向我們展示該如何做了。
過去將來時(shí)用法拓展：
was/were going to+動詞原形；
was/were to+動詞原形；
was/were about to+動詞原形等結(jié)構(gòu)都可表達(dá)當(dāng)時(shí)一種未曾實(shí)現(xiàn)的意圖或打算。
如：The conference was going to be held the next month. 會議下個(gè)月開。
We were to have our class at eight. 八點(diǎn)我們該上課了。
I was about to tell him about it when WuDong go tin. 就在我要告訴他時(shí)，吳東進(jìn)來了。