公开课-虚拟语气在if条件句中的用法

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虚拟语气在条件状语从句中的用法(if条件句)

在写作中的应用
创作文学作品中
在创作小说、诗歌等文学作品时，虚拟语气可以用来表达虚构的情节和角色情感，增强作品的情感
色彩和艺术效果。
撰写学术论文
在撰写学术论文时，使用虚拟语气可以表达假设的情景或条件，例如在讨论不同政策或方案的影
响时。
写邮件和信件
在写邮件或信件时，使用虚拟语气可以表达礼貌和尊重，例如在
在撰写商务广告和宣传材料时，使用虚拟语气可以增强语言的感染力和说服力，例如“假如您正在寻找更好的产品，那么您来对了地方。”
感谢您的观看
THANKS
if条件句中的虚拟语气与时间状语从句的时态不一致
总结词
当if条件句中的虚拟语气与时间状语从句的时态不一致时，通常是为了强调或表达与时间状语从句相反的情况。
详细描述
在英语语法中，当if条件句中的虚拟语气与时间状语从句的时态不一致时，通常是为了强调或表达与时间状语从句相反的情况。这种用法能够使句子更加生动和富有表现力，突出说话者对某个特定时间点的态度或情感。例如，在句子"If I had known the answer yesterday, I would have told you."中，虚拟语气"had known" 与时间状语从句的时态"yesterday"不一致，强调了说话者对过去的遗憾或后悔。
虚拟语气在条件状语从句中的用法(if条件句)
目录
CONTENTS
• 虚拟语气在条件状语从句中的基本结构 • 虚拟语气在条件状语从句中的用法 • 虚拟语气在条件状语从句中的特殊情况 • 虚拟语气在条件状语从句中的实际应用
01 虚拟语气在条件状语从句中的基本结构

if虚拟语气的用法归纳

if虚拟语气的用法归纳IF虚拟语气是英语中的一种重要语法现象，主要用于表示与现实相反的假设、愿望、建议等。

它分为两种形式：if条件句和if非条件句。

以下是对IF虚拟语气用法的详细介绍：一、if条件句1. 表示与现在事实相反的假设：If + 主语+ 过去时态，主语+ would/could/might/should + 动词原形。

例如：If I were you, I would go to the party.（如果我处在你的位置，我会去参加派对。

）2. 表示与过去事实相反的假设：If + 主语+ had done，主语+ would/could/might/should + have done。

例如：If he had come to the meeting, he would have known the plan.（如果他参加了会议，他就会知道这个计划。

）二、if非条件句1. 表示建议、劝告：主语+ should/would/might/ought to + 动词原形。

例如：You should go to the party.（你应该去参加派对。

）2. 表示愿望：主语+ could/would/might + 动词原形。

例如：I wish I were a bird.（我希望我是一只鸟。

）3. 表示假设：If + 主语+ 动词过去式，主语+ would/could/might + 动词原形。

例如：If I had time, I would go to the park.（如果我有时间，我会去公园。

）三、if虚拟语气的特殊结构1. 省略if，将were、had、should等词置于主语之前：主语+ were/had/should + 动词原形。

例如：She were here, she would meet him.（如果她在这里，她会见到他。

）2. 使用倒装结构：were/had/should + 主语+ 动词原形。

虚拟语气在if条件从句中的用法

虚拟语气在if条件从句中的用法在if 引导的虚拟条件句中，若表示与现在事实相反，从句谓语用“动词过去式（be 的过去式用were ）,主句谓语用“would(should, could, might)+have+过去分词”；若表示与将来事实相反，从句谓语用“动词过去式（were to +动词原形，should+动词原形）”，主句谓语用“would(should, could, might)+动词原形”。

若把从句中were, should 或had移到句首，可省略从句的连词 if 并使用倒装语序.① If my lawyer ___here last Saturday ,he ____me from going.(NMET’89)A. had been ;would have preventedB. had been ; would preventC. were ;would preventD. were;would have prevented②---If he ____,he ____that food.--Luckily he was sent to the hospital imme diately.(MET’93)A. was warned ;would not takeB. had been warned ;would not have takenC. would be warned; had not takenD. would have been warned; had not taken③I didn’t see your sister at the meeting .If she ___,she would have met my brother.(NMET’94)A. has comeB. did comeC. cameD. had come④____it rain tomorrow, we would have to put off the visit to the Yangpu Bridge.(1994,上海)A. WereB. shouldC. WouldD. Will2．考查通过上下文或介词短语表示虚拟条件的虚拟语气的用法在英语中，有时假设的条件不是通过if 条件句表达出来，而是通过上下文或without, but for 等介词构成的短语表达，其谓形式要根据所假设的时间，与if 从句所表达的时间对应，确定主句谓语形式。

if 条件句虚拟语气

if 条件句虚拟语气虚拟语气是英语语法中的一种特殊语气，用来表示与事实相反或假设的情况。

在if条件句中，虚拟语气通常用来表达非真实的、假设的情况。

本文将列举10个以if条件句虚拟语气为主题的例子，并对其进行详细解释。

1. If I were rich, I would travel around the world.如果我很富有，我会环游世界。

解释：这个句子中的虚拟语气表达了对现实情况的假设，暗示说我并不富有，因此无法实现环游世界的愿望。

2. If I had studied harder, I would have passed the exam.如果我学得更努力，我就能通过考试了。

解释：这个句子中的虚拟语气表示对过去情况的假设，暗示说我没有努力学习，所以没有通过考试。

3. If I had a time machine, I would go back to the past and change some things.如果我有一台时间机器，我会回到过去改变一些事情。

解释：这个句子中的虚拟语气表达了对现实情况的假设，暗示说我没有时间机器，因此无法改变过去的事情。

4. If I were the president, I would make education free for all.如果我是总统，我会让教育对所有人免费。

解释：这个句子中的虚拟语气表达了对现实情况的假设，暗示说我并不是总统，所以无法实现让教育免费的目标。

5. If it didn't rain tomorrow, we could go hiking.如果明天不下雨，我们可以去远足。

解释：这个句子中的虚拟语气表达了对未来情况的假设，暗示说明天可能会下雨，所以无法去远足。

6. If I had known you were coming, I would have prepared a meal for you.如果我知道你要来，我会为你准备一顿饭。

英语语法讲解之——虚拟语气

虚拟语气：表示动作或状态不是客观存在的事实，而是说话人的主观愿望、假设或推测等。

If I were a bird, I could fly in the air. 如果我是一只小鸟，我就能在空中飞行。

I wish I could pass the examination. 我希望我能通过考试。

May you succeed! 祝您成功!I．状语从句中的虚拟语气一、虚拟语气在if 引导的条件句中的用法：1. 表示与现在事实相反的虚拟条件句。

其句子结构为：从句：If + 主语+ 动词的过去式(be 用were) + ……主句：主语+ would (should, could , might) + 动词原形+ ……If I were you, I would go with him. If the weather were fine, I would go there.If it weren’t snowing, we wouldn’t stay in the house.If it weren’t for your help, we would get into trouble.If they were here, he would be speaking to them now.2. 表示与过去事实相反的虚拟条件句。

其句子结构为：从句：If + 主语+ had +动词的过去分词+ ……主句：主语+ would (should, could, might) + have +动词的过去分词+……If you had taken my advice, you would not have made such a mistake.如果你听了我的劝告,就不会犯这样的错误。

If it hadn’t been for your help, I shouldn’t have finished this work on time.要是没有你们的帮忙，我就不会按时完成了这项工作。

高中英语if引导的虚拟语气公开课优质获奖课件

Situation3
If we should turn into common people some day, we would live with each other.ary future
If 从句的谓语形式主句的谓语形式
future
1.should+do
2. did（were） 3. were to do
hands.
Unreal present
☆If we should turn into ordinary people some day, we would live happily with each other.
Imaginary future
Situation1
If I had not pulled the sword out at first, I wouldn’t have fallen in love with her.
★If I _h_a_d_t_r_e_a_su__re_d_ (treasure) her at that time, I _w_o_u_l_d_n_o_t__h_a_v_e_t_a_k_e_n___ (take) so much pain.
▲_H__a_d__I treasured her at that time, I would not have taken so much pain. （如果if虚拟条件句中的谓语部分有had，通常省略if而将 had提到句首变成倒装句）
If 从句的谓语形式主句的谓语形式
present did（were） would/could/
should/might +do
Classic movie line 2

if引导的条件句中的虚拟语气

if引导的条件句中的虚拟语气虚拟语气表示一种不能实现的假设。

该语法主要用于if条件状语从句。

一、if引导的条件状语从句的分类及虚拟条件句的判断1、可以把条件句分为两类：1).真实条件句（Sentences of Real Condition）：凡是假设的情况发生性可能很大，就是真实条件句。

例如：⑴、If I have tim e , I will help you with this work.如果我有时间会帮助你做此工作的。

(2)、If time permits, we'll go fishing together.(如果有时间的话，我们就一起去钓鱼。

）2).虚拟条件句（Sentences of Unreal Condition）：当假设是不大可能实现时，就是虚拟条件句。

例如：⑴、If I were you , I w ould have attended the meeting. 如果我是你的话，就去参加会议了。

⑵、If he had come here yesterday, he would have seen his old friend.假如他昨天来这儿的话，就会看见他的老朋友。

⑴、If it had rained yesterday, we would have stayed at home.（如果昨天下雨的话，我们就会留在家里。

）2、.if条件状语从句中虚拟语气的判断判断是真实条件句还是非真实条件句。

只有在非真实条件句中才使用虚拟语气。

通过句子意思，看假设的条件是否能够实现，能够实现是真实条件句，不能使用虚拟语气；假设的条件不能实现则是非真实条件句，要用虚拟语气。

判断这个假设是与哪个事实相反。

通常有三种情况：①与过去事实相反。

②与现在事实相反。

③与将来事实可能相反。

3、“后退一步法”后退一步法是指在准确地判断了该句与哪一事实相反后，按虚拟语气的后退一步法处理从句谓语动词的时态。

If 引导的虚拟语气

If虚拟语气在if引导的条件句中的用法三点：从句（条件）主句（目的）例句表示于现在事实相反的虚拟条件句If+主语+动词的过去式（be用were）主语+would(shouldcould might)+动词原型If he were free, he would help us. 要是他有空的话，它会帮助我们的。

表示与过去事实相反的拟条件句If+主语+had+动词的过去分词主语+would（shouldcould might）+have+动词的过去分词If I had seen the film, I would havetold you about it. 我如果看过这场电影，我会把电影内容告诉你了。

表示与将来事实相反的虚拟条件句If+主语+should（wereto）+动词原型/动词的过去式主语+would（couldshould might）+动词原型If he were to come here, he wouldtell us about it. 如果他要来的话，他会通知我们一声引导真实条件状语从句引导真实条件状语从句（虚拟语气）与将来事实相反的虚拟语气请看下面的题目：If we __________ 200 years old，we __________ everything.A. were to be，could changeB. had been，changedC. were，would have changedD. should be，changed该题考查与将来事实相反的虚拟语气，此时的主句谓语通常用would(should，could，might)＋动词原形，而从句谓语可能有以下几种情况：1.从句谓语用过去式：If your father knew this，he would be angry. 要是你父亲知道了，他会生气的。

If it rained tomorrow，the sports meet would be put off. 要是明天下雨，运动会就推迟。

if条件句虚拟语气

有关英语if条件句虚拟语气用法
if的虚拟语气用法：
1、现在时:当if引导的虚拟语气表示与现在事实相反时，主句谓语用could、would、shoul d或mi ght加动词原形，条件从句中的谓语用过去式。

2、过去时:当if引导的虚拟语气表示与过去事实相反时，主句谓语用could、would、shoul d或mi ght加have再加动词原形，
3、将来时:当if引导的虚拟语气表示与将来事实相反时，主句谓语用could、would、shoul d或mi ght加动词原形，条件从句中的谓语用过去式。

虚拟语气中，表条件的状语从句的if可以省略，但主语必须与动词易位（也就是倒装）：
If it were not for his illness, he could do better.
=Were it not for his illness, he could do better.
如果不是因为他生病，他可以做得更好。

If he had money, he would buy that villa.
= Had he money, he would buy that villa.
对将来情况的虚拟：
主句：主语＋would/should/might/could＋动词原形从句：should＋动词原形/were to＋动词原形。

对现在情况的虚拟：
主句：主语＋would/should/might/could＋动词原形从句：动词过去式
对过去情况的虚拟：
主句：主语＋would/should/might/could have＋动词过去分词从句：had＋动词过去分词。

虚拟语气在if条件句中的用法

If I were a boy, I think I could understand how it feels to love a girl.
If I were a boy,I would roll out of bed in the morning. 如果我是一个男孩，我会在清晨翻身下床。如果我是一个男孩，我想我会明白爱上一个女孩会是怎样的感觉。
Байду номын сангаас
If you had worked hard ,you would have passed the exam .
If they had had enough rain last year, they would have gained good harvest.
If he had driven more carefully yesterday, he would not have had the car accident .
2.I didn’t see your sister at the meeting. If she__h_a_d__c_o_m_e_______ (come), she__w_o_u__ld__h_a_v_e_m__e_t__ (meet) my brother.
3. Miss Jiang explained the homework to the class yesterday. If Judy ___h_a_d_p_a_i_d___________(pay) more attention at the time, he_w_o_u_l_d__n_o_t_h_a_v_e_m__i_ss_ed (not miss) her instructions(介绍).
When(时间）

if引导虚拟语气的用法

1、表示与现在事实相反的情况：从句：If 主语+过去时(Be动词用were)主句：主语+should/would/could/might+doeg：1．If I were you,I would take an umbrella.如果我是你，我会带把伞。

（事实：我不可能是你）2．If I knew his telephone number,I would tell you.如果我知道他的电话号码，我就会告诉你。

（事实：不知道）3．If there were no air or water,there would be no living things on the earth.如果没有水和空气，地球上就不会有生物。

(事实：地球上既有空气也有水)4．If I had any money with me,I could lend you some.如果我带钱了，我就会借给你些。

（事实：没有带钱）5．If he studied harder,he might pass the exam.如果他再努力些，就能通过考试了。

（事实：没有努力）6．she looked at me as if I had been a stranger.她看我的样子好像我是一个陌生人。

（事实：我并非陌生人）2、表示与过去事实相反的情况从句：If 主语+had+done主句：主语+should/would/could/might+have doneeg：1． If I had got there earlier,I should/could have met her. 如果我早到那儿，我就会见到她。

（事实：去晚了）2．If he had taken my advice,he would not have made such a mistake. 如果他听我的劝告的话，就不会犯这样的错误了。

（事实：没有听我的话）3、表示对将来情况的主观推测主句：主语+should+do从句：①if+主语+were to do②if+主语+should/would/could/might+do③if+主语+did（动词过去式）/wereeg：1．If he should come here tomorrow,I would talk to him.如果他明天来这儿的话，我就跟他谈谈。

IF条件句中虚拟语气(微课)PPT课件

03 if条件句中虚拟语气的用法
表示与事实相反的情况
结构
与现在事实相反，从句用“if+主语+动词过去式”，主句用 “would+动词原形”。
举例
If I were you, I would choose to study abroad.（如果我是你，我会选择出国留学。）
表示假设条件
结构
假设条件句可以用“if+主语+动词过去式+其他”，表示在假设条件下可能发生的情况。
虚拟语气与其他从句的区别
虚拟语气在if条件句中的用法与其他从句有所不同，需要注意区分。
例如，与if条件状语从句相比，虚拟语气在表达与事实相反的情况时，主句和从句的谓语动词形式会有所不同；与 if时间状语从句相比，虚拟语气更加注重假设和想象，而非真实的时间顺序。
05 if条件句中虚拟语气的练习与巩固
在主句和从句中，时态的一致性是虚拟语气的基本要求，否则会导致语法错误或语义混淆。
主从句时态对应关系
在if条件句中，虚拟语气的主句和从句时态有一定的对应关系。
如果主句是虚拟现在时，从句通常也是虚拟现在时；如果主句是虚拟过去时，从句通常也是虚拟过去时；如果主句是虚拟将来时，从句通常也是虚拟将来时。
02 if条件句中虚拟语气的形式
与现在事实相反的虚拟语气
总结词
表示与现在事实相反的情况，通常使用动词的过去式。
详细描述
在if条件句中，当表示与现在事实相反的情况时，从句使用动词的过去式（be动词用were），主句使用would+动词原形。例如，“If I were you, I would choose to study abroad.”（如果我是你，我会选择出国留学。）

公开课-虚拟语气在if条件句中的用法1

When(时间）
Structure (结构）
与_过_去__事_o_n_e_(动_词_过__去_分_词_）_…_, sbw__ou__ld__(n_o_t_) _h_a_v_e_d_o_n_e_(动. 词过去分词）
Practice 2
1.I __w_o_u_l_d_h_a_v_e__s_tu_d_i_e_d (study) English when I was a child if I __h_a_d_k_n_o_w__n_______(know) the importance (重要性)of it.
are thinking.
Two-year-old:
If I __c_o_u_l_d__(can) talk, I __w_o_u__ld__te_l_l___(tell) my mother that I hate peas.
14 year-old:
I ___w_o_u_l_d_b_e____(be) happier if I _c_o_u_l_d__(can) drive.
3. Eason doesn’t think he will ever win a singing Competition（比赛）. If, by chance, he
_w_e_r_e__to__w_i_n_/s_h_o_u_l_d__w_i_n_/w_on (win), he __w_o_u_l_d_s_p_e_n_d_ (spend) the prize money on a computer.
If you had worked hard ,you would have passed the exam .
If they had had enough rain last year, they would have gained good harvest.

if条件句中的虚拟语气讲解

虚拟语气(一)一、考点聚焦1、虚拟语气用于条件状语从句中If I were a boy, I would join the army.If she had time, she should go with you.If h e had taken my advice, he would have succeeded in the competition.If i t were to rain tomorrow, the football match would be put off.If I had time, I would attend the meeting.If he had hurried ,he could have caught the train.If I were to go abroad ,I would go to America如果我是你，我就会努力学习If I were you, I would work harder at my lessons.如果我知道他的电话号码，我就给他打电话了If I had known his telephone number, I would have called him.如果明天下雨的话，我们会取消比赛．If it should \were to rain, we would call off the match.使用虚拟条件句要注意的几点：１．当条件状语从句表示的行为和主句表示的行为所发生的时间不一致时，被称为：错综时间条件句“，动词的形式要根据它所表示的时间作出相应的调整．If you had followed my advice , you would be better now.如果你听我的建议，你现在就会痊愈了．If you had studied hard before, you would be a college student now.如果你努力学习的话，你现在就会是大学生了．If they had worked hard, they would be very tired now.(从句说的是过去，主句指的是现在)２．省略句在条件句中，可省略if，把were ,had, should 提到句首，变为倒装句式．If I were at school again, I would study harder.Were I at school again, I would study harder.If you had come earlier, you would have met him.Had you come earlier, you would have met him.If it should rain tomorrow, we would not go climbing.Should it rain tomorrow, we would not go climbing.Were I a boy, I would join the army.Had he taken my advice, he would have succeeded.Were it not for the expense, I would go to Britain.2、虚拟语气用于名词性从句（1）虚拟语气在宾语从句中的运用。

if条件状语从句中虚拟语气

if条件状语从句中的虚拟语气一、if条件状语从句中虚拟语气的判断判断是真实条件句还是非真实条件句。

只有在非真实条件句中才使用虚拟语气。

通过句子意思，看假设的条件是否能够实现，能够实现是真实条件句，不能使用虚拟语气；假设的条件不能实现则是非真实条件句，要用虚拟语气。

1. “后退一步法”后退一步法是指在准确地判断了该句与哪一事实相反后，按虚拟语气的后退一步法处理从句谓语动词的时态。

即：在非真实条件状语从句中，谓语动词按正常情况“后退一步”。

也就是：①与过去事实相反，在从句中用过去完成时形式表示。

②与现在事实相反，在从句中用过去一般时形式表示。

③与将来事实可能相反，在从句中用过去将来时形式表示。

主句中则用情态动词would,should, could 等加一个与从句一致的动词形式。

例：⑴、If I had come her yesterday, I would have seen him.⑵、If I were a teacher, I would be strict with my students.⑶、If it should snow tomorrow, they couldn't go out.2、注意事项：①if条件句中如有were, should, had，可以省去if，并使用倒装语序。

②在现代英语中if条件状与从句中的谓语动词如果是be其过去形式一般用were。

二、虚拟语气在if 引导的条件句中的用法：（一）、表示与现在事实相反的情况。

其句子结构为：从句：if + 主语+ 动词的过去式(be 用were) + ,,，主句：主语+ would (should, could , might) + 动词原形+ ,,例：1. If it weren’t for your help, we would get into trouble. 如果没有你们的帮助，我们就会陷入困境。

（而事实上得到了你们的帮助）2.If the weather were fine, I would go there. 如果天气好，我去那儿。

if的用法虚拟语气

if的用法虚拟语气一、概述使用虚拟语气的一个重要方面是if条件句。

在英语中，if引导的条件句可以表达对现实情况的假设、猜测以及对未来可能发生情况的虚构和愿望。

本文将介绍if 条件句的三种形式以及它们在不同语境中的用法。

二、Type 1 条件句：对现实情况的假设Type 1 条件句表示真实或可能发生的事实，并使用“现在时”来描述。

这种条件句引导下，主句可以使用一般现在时或将来时。

1. If + 简单现在时，主句一般现在时如果明天下雨，我会带伞。

If it rains tomorrow, I will take an umbrella.2. 如果明天下雨，我就不去野餐。

If it rains tomorrow, I won't go on a picnic.3. 如果你迟到，老板会生气。

If you are late, the boss gets angry.4. 如果他学习努力，他可以通过考试。

If he studies hard, he can pass the exam.三、Type 2 条件句：对现在虚拟情况及假设提出建议或警告Type 2 条件句用于描述目前不太可能或不太可能发生事实，并使用“过去时”来描述。

这种条件句引导下，主句使用虚拟语气来表达对未来情况的假设。

1. 如果我有更多时间，我会旅行。

If I had more time, I would travel.2. 如果她付出更多努力，她会取得好成绩。

If she worked harder, she would get better grades.3. 如果你离开公司，你将失去机会。

If you leave the company, you will miss the opportunity.4. 如果我是你，我会接受那份工作。

If I were you, I would take that job.四、Type 3 条件句：对过去虚拟情况及假设提出后悔或反悔Type 3 条件句用于描述过去不可能发生的事实，并使用“过去完成时”来描述。

if条件句中虚拟语气PPT课件

在英语中，虚拟语气通常通过动词时态的变化来体现，如使用过去时、过去完成时或过去将来时等。
虚拟在事实相反的情况，使用一般过去时或过去进行时。
与过去事实相反的虚拟语气
表示与过去事实相反的情况，使用过去完成时。
与将来事实相反的虚拟语气
表示与将来事实相反的情况，使用过去将来时。
在委婉语气中的使用
总结词
虚拟语气在if条件句中还可以用于表达委婉的语气，通过使用相应的时态和谓语动词形式来缓和语气或避免直接表达。
详细描述
在某些情况下，使用虚拟语气可以表达更加委婉的语气，使话语更加柔和、礼貌或含蓄。这种用法通常用于避免直接表达某些可能引起冲突或敏感的话题。
例子
If I were you, I would consider carefully before making a decision.（如果我是你，我会在做出决定之前仔细考虑。）这句话使用虚拟语气来委婉地提出建议或建议对方谨慎行事。
05
if条件句中虚拟语气的例句分析
与现在事实相反的例句
01
02
03
总结词
表示与现在实际情况相反的情况
例句
If I were you, I would choose this option.（如果我是你，我会选择这个选项。）
解释
这句话表示与现在实际情况相反的情况，即说话者不是听话者，所以选择的情况也是不存在的。
与过去事实相反的例句
总结词
表示与过去实际情况相反的情况
例句
If I had known the answer, I would have told you.（如果我早知道答案，我早就告诉你了。）
解释
这句话表示与过去实际情况相反的情况，即说话者没有早知道答案，所以告诉你的情况也是不存

虚拟语气在条件句中的用法

虚拟语气在条件句中的用法虚拟语气表示说话人的话是一种强烈的主观愿望、假设、猜测、建议、可能或空想，因此这些表虚拟含义的词、短语或句子就成为构成虚拟语气的标志。

虚拟语气多用在表示非真实if条件状语从句中。

当if条件状语从句表示说话人所说的话只是一种假设时，是一种标准的虚拟语气。

虚拟语气用法详解一、条件句中的虚拟语气1. 条件句中虚拟语气的形式从句中提出一种与客观现实不相符或根本不可能存在的条件，主句会产生的一种不可能获得的结果。

条件句中的虚拟语气根据不同的时间有三种不同的形式。

时间从句谓语形式主句谓语形式将来动词过去式(be用were)should + 动词原形would / should / might / could + 动词原形were to + 动词原形现在动词过去式(be 用were) would / should / might / could + 动词原形过去had +动词过去分词would / should / might / could have + 动词过去分词2. 条件中的虚拟语气的举例(1) 将来时的条件句中的虚拟语气。

如：If he should go to Qing Hua University, he would mall use of his time. 如果他要上清华大学的话，他就会充分利用他的时间了。

If he were to e here, he would tell us about it. 如果他要来的话，他会通知我们一声。

(2) 现在时的条件句中的虚拟语气。

如：If he were free, he would help us. 要是他有空的话，它会帮助我们的。

If he studied at this school, he would well. 如果他在这所学校学习的话，它会对你很熟悉。

(3) 过去时的条件句中的虚拟语气。

如：If I had seen the film, I would have told you about it. 我如果看过这场电影，我会把电影内容告诉你了。