讲解一下：过去将来完成时的概念和用法，一起来看看吧！   一、构成方法 过去将来完成时由“would+have+过去分词”构成。 二、用法及用例 过去将来完成时表示在过去看来将来某时会已经完成的动作： She said she’d have finished her exams by then. 她说那时她会已经考完试了。 I thought Sophia would have told you something. 我想索菲娅会已告诉你一地情况。 I thought you would have finished by now. 我想你现在一定已经干完了。 There are a lot of things I should have liked to ask you. 有好些事我本想问你的。 He knew by the time he arrived she would have gone home. 他知道他到时她会已经回家了。 Well, well! Who would have guessed it! 真过去将来完成时是的! 这谁会想到呀!   1. A quick nod of approval would have done nicely.   要是当时立即点头同意就好了。 2. I asked myself what I would have done in such a situation.   我问自己在这种情况下我会怎么做。 3. No man in his senses would have done so.   没有一个神志清醒的人会这样做. 4. She got much less than she would have done if she had settled out of court.   如果她同意庭外和解的话，得到的肯定会更多。 5. She would have done nearly as well with a block of wood.   即使跟她配戏的只是一段木头,她也可以演得几乎一样出色. 6. He would have done his utmost to help her, of that she was certain.   他肯定会尽最大努力帮她，这一点她非常肯定。 7. But she did not speak impatiently as she once would have done.   但是她说这话时并没有像以前那样很不耐烦.   怎么样，看完了这篇文章，大家是不是对过去将来完成时的用法有了初步的了解了呢？喜欢就赶快收藏起来吧~

题上挑动战争, 他早就这样做了. 3. But the poor girl's dumb eloquence irritated her father more than anything else would have done.   但是,她泄露哀情的沉默比其他任何东西都更使父亲不高兴. 4. I just did what anyone would have done in my situation.   我所做的事情,别人在我的处境下也会这么做的. 5. Do the things you would have done - dress up, don't be late, charmingly.   做第一次约会时会做的东西 – 悉心打扮一下, 不要迟到, 驶出你的吸引力. 6. I just did anyone would have done in my situation.   我所做的工作,别人在我的处境下也会这么做的. 7. That what I would have done as a coach too.   如果我是个教练,我也会那么做. 8. This would have done better in poesy; where transcendencies are more allowed.   这过去将来完成时句话如果是一句诗,也许更好一点,因为在诗里头,高夸的说法,好象是更为可许似的.   怎么样，看完了这篇文章，大家是不是对过去将来完成时的用法有了初步的了解了呢？喜欢就赶快收藏起来吧~

间断性。例如： 1.She had been studying for two hours when her classmate came to visit her. 当她的同学来看她的时候，她学习有两个小时了。 2.I had been writing a letter for two hours by the time she came to see me. 当她来看我的时候，我已经写了两个小时的信了。 3.They had been having breakfast for ten minutes when Tom came in. 汤姆来时，他们已经吃了十分钟的早饭了。 4.She had been dancing for one hours when her mother came back home. 当她的妈妈回到家时，她跳舞有一个小时了。 5.I had been reading this book for three hours by the time she came to see me. 当她来看我的时候，我已经读了三个小时的书了。 6.They had been having class for twenty minutes when Tom came in. 汤姆来时，他们已经上了二十分钟的课了。 7.My father had been watching TV for two hours when his friend came to visit him. 当他的朋友来过去完成进行时中，例如 work、study、stay、sing、teach等延续性动词与表示一段时间的时间状语连用时，用过去完成进行时看他的时候，我的父亲已经看了两个小时电视了。 8.Tom had been playing piano for two hours by the time Lily came to see him. 当丽丽来看他的时候，汤姆已经练习钢琴两个小时了。 9.We had been talking about this project for one hour when manager came in. 经理来时，关于这个项目，我们已经讨论了一个小时了。

行时的用法 A. 在某段时间内一直进行的动作用现在完成进行时来强调动作在某段时间里的持续性动作通常有"现在"的结果要根据上下文来确定到"现在"为止动作是否还在继续进行同样过去完成进行时表示在过去更早时间内进行的动作,并对过去某一时刻产生结果。 B.表示重复动作的现在/过去完成进行时 我们也可以用完成进过去完成时行时形式来表示现在或过去经常重复的动作。 注意过去完成进行时和过去完成时类似需要有过去这一时间点。

行时主要表示过去某时的一个动作正在进行。例如： 1. I was writing a letter when she came to see me. 当她来看我时我正在写信。 2.I had been writing a letter for two hours by the time she came to see me. 当她来看我的时候，我已经写了两个小时的信了。 5. 过去完成进过去完成进行时是一种比较抽象的时态，学习它需要理解整个句子所处的语境和时间。过去完成进行时行时与过去完成时的不同。过去完成时表示过去某时间前已经发生的动作或情况，这个过去的时间可以用by，before等介词短语或一个时间状语从句来表示；或者表示一个动作在另一个过去动作之前已经完成。例如： 1. They had just had breakfast when Tom came in. 汤姆来时，他们刚吃过早饭。 2. They had been having breakfast for ten minutes when Tom came in. 汤姆来时，他们已经吃了十分钟的早饭了。

开始并持续到现在的动作或状态。 2、当since引导的时间状语从句描述的是一个从过去持续到现在的一个状态时，从句也可以用现在完成时或现在完成进过去时间点的词语、since+含有过去含义的时间状语从句、since+一段时间+ago三种用法。since有三种词行时，但这种情况相对较少见。 特别提醒：如果大家想要了解更多英语方面知识，或者想要深入学习英语的，可以扫以下二维码，定制沪江网校精品课程，高效实用的个性化学习方案，专属督导全程伴学 现在完成时中since的三种主要用法包括：与表示过去时间点的词语/短语连用、与含有过去含义的时间状语从句连用、以及与一段时间+ago连用。这些用法都体现了since在表达时间关系和动作持续性方面的强大功能。通过学习和掌握这些用法，我们可以更准确地运用现在完成时来表达复杂的时间关系和动作状态。

过去将来完成时，顾名思义，是在过去的时间点上谈论未来将会完成的动作。不是特别常用的一种时态。基本结构为：would + have + done（过去分词月底就不用我的照相机了。 2）He knew by the time he arrived she would have gone home. 他知道他到时她会已经在家。 3）I guessed that Mother would have made some sandwiches by the time we got back. 我猜我们回来时妈妈已经做好一些三明治了。 2、 虚拟句 例句： 1）But I also know that if I could somehow go back, I probably would have done the same thing. 其实我很清楚，如果给我一次重来的机会，我或许还是会做出同样的选择。 2）“If it was possible, I would have done it, ” Kostya said. “要是能做到的话，我肯定会按你说的那么做。” 克斯特亚说。 3）If I refused a customer or a customer complained about me they would have done something bad to me. 如果我拒绝了一个客人或者客人有抱怨，他们会惩罚我。

已经通过了考试。 2.过去已经开始的动作一直延续到现在, 甚至有可能继续延续下去,我们可以从动作“延续”的特性和“时间”点段的区分入手,进一步学习现在完成时。 *①for+时段  ②since+过去一个时间点（过去从句）为标志  注意： 1)现在完成时不能单独与过去的时间状语连用, 如yesterday, last week, three years ago 等; 2)不能与when连用2.现在完成时往往同表示不确定的过去时间状语连用   现在完成时用来表示之前已发生或完成的动作或状态,但它的影响现在还存在；也可表示持续到现在的动作或状态.其构成：have (has) +过去分词.规则变化的过去分词与过去式的变化一样,在动词词尾加ed; 不规则变化的过去分词见不规则动词表,需要同学记忆. 现以see the film为例将现在完成时的肯定句, 否定句和疑问句列表如下： 肯定句：I/You/We/They have seen the film. He/She /It has seen the film. 否定句：I/You/We/They have not/ haven’t seen the film. He/ She/It has not/hasn’t seen the film. 疑问句：Have I/you/they seen the film? Yes, you/ we/I/they have. No, you/ we/I/they haven’t. Has he/she/it seen the film? Yes, he/ she/ it has. No, he/ she/ it hasn’t.   看完成时是英语中的一个重要时态，现在完成时的语法内容非常丰富，现在完成时也有特殊的标志完了上面的语法知识，大家应该就能明白现在完成时的标志了，赶快收藏起来吧~

行时也必须以一过去时间为前提。 　　I had been looking for it for days before I found it. 　　这东西我找了好多天才找着的。 　　They had only been waiting for the bus a few moments when it came. 　　他们只等了一会儿车就来了。 　　②表示反复的动作。 　　He had been mentioning your name to me. 　　他过去多次向我提到过你的名字。 　　You had been giving me everything. 　　你对我真是有求必应。 　　③过去完成进行时还常用于间接引语中(详见第12章)。 　　The doctor asked what he had been eating. 　　医生问他吃了什么。 　　I asked where they had been staying all those days. 　　我问他们那些天是呆在哪儿的。 　　④过去完成进过去完成进行时行时之后也可接具有“突然”之意的when分句。 　　I had only been reading a few minutes when he came in. 　　我刚看了几分钟他就进来了。 　　She'd only been reviewing her lessons for a short while when her little sister interrupted her. 　　她温习功课才一会儿，她妹妹就打断她了。 　　I had been sleeping when my friend telephone me.      我正在睡觉时，我的朋友给我打电话。   怎么样，看完了这篇文章，大家是不是对过去完成时的用法有了初步的了解了呢？喜欢就赶快收藏起来吧~

表示在过去将来某一时间以前发生的动作，并往往会对过去将来某一时间或者某一时刻产生影响，例如： 1. I thought you'd have come by this time. 我想这会儿你已经来了。 2. He told them he would have finished it by 8 o'clock. 他告诉他们他会在8点以前干完。 3. I guessed that Helen would have told her something. 我猜海伦会告诉她一些情况的。 4. I thought you'd have finished your work by this time. 我想这会儿你已经完过去将来完成时从定义上看表示在过去将来某一时间以前发生的动作，并往往会对过去将来某一时成了你的工作。 5. He told them he would have begun it by 7 o'clock. 他告诉他们他会在7点以前开始。 6. I guessed that her mother would have beaten her very hardly. 我猜她的妈妈会打的她非常厉害。 7. I thought you'd have awoke by this time. 我想这会儿你已经醒了。 8. He told them he would have returned this book by 5 o’clock. 他告诉他们他会在5点以前还这本书。 9. I guessed that Mary would have borrowed much money . 我猜玛丽借了很多钱。