过去将来时的概念：

过去将来时表示从过去的某一时间来看将来要发生的动作或存在的状态。过去将来时常用于宾语从句和间接引语中。过去将来时的出发点是过去，即从过去某一时刻看以后要发生的动作或状态。

过去将来时的结构：

（1）would+动词原形：
如：She told us that she would try her best to catch up with other classmates this term. 她告诉我们说她将一切努力在本期赶上其他同学们。 　　
        When you asked Li Lei for help, he would never refuse you. 过去当你请她帮忙时，他绝不会拒绝。 　　
（2）was/were going to+动词原形：
如：He told us that he was going to attend the meeting. 他告诉我说他要参加那次会议。 　　
        He said that I was going to be sent to meet her at the railway station.他说将要派我去火车站接她 　　
（3）was/were to+动词原形：
如：The building was to be completed next month. 这座建筑改在下个月竣工。 　　
        Li Lei was to arrive soon. 李蕾很快就要到了。 　　
（4）was/were about to+动词原形：
如：We were about to leave there when it began to rain heavily and suddenly. 就在我们要离开时，天突然下起了大雨。 　　
        He was about to have lunch when the bell rang. 就在他要吃中饭的时候，门铃响起来了。 　　
（5）was/were+现在分词：
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. 我们接到通知说领导们很快要来我们学校。 　

过去将来时的用法：

（1）过去将来时，一般用于主句为过去时的宾语从句中。
如：He said he would stay with us. 他说他要与我们呆在一起。 　　
        He said he would never go there again. 他说他绝不会再去那儿。 　　
（2）过去将来时，用于虚拟语气中。
如：If I were you, I would not do that. 要是我是你的话，我就不会那样做。 　　  
        If he were here, he would show us how to do it. 如果他在这儿，他就会向我们展示该如何做了。

过去将来时用法拓展： 　　

was/were going to+动词原形；
was/were to+动词原形；
was/were about to+动词原形等结构都可表达当时一种未曾实现的意图或打算。
如：The conference was going to be held the next month. 会议下个月开。 　　
        We were to have our class at eight. 八点我们该上课了。 　　
         I was about to tell him about it when WuDong go tin. 就在我要告诉他时，吴东进来了。

宾语从句的概念：

置于动词、介词等词性后面起宾语作用的从句叫宾语从句。宾语从句的语序必须是陈述语序。谓语动词、介词、动词不定式，v.-ing形式后面都能带宾语从句。有些形容词（afraid, sure, glad等）之后也可以带宾语从句。

宾语从句的用法：

1、宾语从句的引导词：
宾语从句通常由连词that和whether(if)、连接代词或连接副词以及关系代词型what引导：
如：We believe that he is honest. 我们相信他是诚实的。
         I don't know whether he'll arrive in time. 我不知道他是否能及时到。
         I don't know who(m) you mean. 我不知道你指谁。
        He asked why he had to go alone. 他问他为什么必须一个人去。
        Please tell me which you like. 告诉我你喜欢哪一个。
        She has got what she wanted. 她要的东西得到了。
注：有时介词后可接跟一个宾语从句(但介词后通常不接that和if引导的宾语从句)：
如：From what you say, he is right. 根据你所说的，他是对的。
有极个别介词(如but,except)可接that引导的宾语从句：
如：She remembered nothing about him except that his hair was black. 她对他什么都不记得，只记得他的头发是黑的。
2、宾语从句与形式宾语it：
当宾语从句后跟有宾语补足语时，通常在宾语从句处使用形式宾语it，而将真正的宾语从句移至句末：
如：I think it best that you should stay here. 我认为你最好住这儿。
       He hasn't made it known when he is going to get married. 他还没宣布他何时结婚。
3、连词that的省略问题：
引导宾语从句的连词that通常可以省略：
如：She said(that) she would come to the meeting. 她说过要来开会的。 
        I promise you(that) I will be there. 我答应你我会去。
注：有时为了强调，that引导的宾语从句可位于句首，此时that不可省略：
如：That she is a good girl I know. 她是一个好姑娘，我是知道的。
4、宾语从句与否定转移当动词think, believe, suppose, expect, imagine后接一个表示否定意义的宾语从句时，其否定通常转移到主语：
如：I don't suppose that it is true. 我认为那不是真的。
        I don't imagine that he will come. 我想他不会

使用宾语从句特别注意：

一、宾语从句的语序：
宾语从句的语序是陈述句语序即：连接代词/副词+主语+谓语+其他成分。
如：I don't know what they are looking for.
       Could you tell me when the train will leave?
       Can you imagine what kind of man he is?
二、宾语从句的时态：
主句是一般现在时，从句根据实际情况使用任何时态。
句：The headmaster hopes everything goes well.
主句是过去时态，从句须用过去时态的某种形式。
句：She was sorry that she hadn't finished her work on time.
当宾语从句表示的是一个客观真理或者事实时，即使主句是过去时，从句也用一般现在时态。
如：The teacher told his class that light travels faster than sound.
三、宾语从句的特点：
宾语从句可以作及物动词、介词及形容词的宾语。宾语从句的语序一律用陈述句语序。连接词that引导宾语从句在句中无词义，不充当句子成份，多数情况下可以省略。whether和if都可引导宾语从句，但whether后可紧跟or not；whether从句可作介词的宾语。如果从句太长，可以用形式宾语it.