为什么虚拟语气的句子里不能有was或were？

~ 感谢您关注智课网(SmartStudy)
虚拟语气的形式和用法
1、对现在的虚拟，表示与现在事实相反的假设时，条件状语从句的谓语动词用过去式（be的过去式用were.而主句中的谓语动词用would (should,could, might) + 动词原形。见下表：
条件状语从句的动词形式
主句的动词形式
If+主语+ 动词过去式 (be的过去式were.在口语等非正式场合中，I，he，she，it等后面也可用was.但在If I were you中，一定要用were，不能用was.
I (we)should+动词原形
主语 + would (might, could)十动词原形

例句：
·If I were you, I should study English.(fact: I am not you, so I shall not study English.)
·If he had time, he would attend themeeting. (fact: He does not have time, so he will not attend the meeting.)
·If they didn’t take physical exercisesevery day, they wouldn’t be so healthy. (fact: They take physical exercisesevery day, so they are very healthy.)
·If you went to bed earlier, you wouldnot be so sleepy in the morning. (fact: You often go to bed late, so you arealways sleepy in the morning.)
·If this were the case, it would be veryawkward. (fact: This is not the case, soit is not awkward.)

2、对过去的虚拟，表示与过去的事实相反的假设时，条件状语从句的谓语动词用过去完成时, 主句的谓语动词用would (should,could, might)+过去分词。见下表：

条件状语从司的动词形式
主句的动词形式
If+主语+had+过去分词
I (we)should+have+过去分词
主语+could (might,could)+have ＋过去分词

例句：
·If you had taken my advice, you wouldn’thave failed in the examination. (fact:You did not take my advice, so you have failed in the examination.)
·I would have checked my paper again if Ihad had more time at yesterday’s examination. (fact: I did not have more time at yesterday’s exam, so I didn’t checkmy paper again.)
·He would have already recovered from hisillness if he had seen the doctor in time. (fact: He didn’t see the doctor intime, so he has not recovered from his illness.)
·If we had known that she was to arriveyesterday, we could have met her at the station. (fact: We didn’t know that shewas to arrive yesterday, so we could not meet her at the station.)
·You didn’t let me drive. If we haddriven in turn, you wouldn’t have got so tired. (fact: We didn’t drive in turn,so you have got so tired.)
3、表示与将来事实相反的假设，对将来表示怀疑，或将来的动作不太可能实现时，条件状语从句和主句的谓语动词有以下形式：（见表）
条件状语从句的动词形式(三种)
主句的动词形式
(1) If + 主语 + 动词过去式 (be的过去式用were). 通常要与一个表示将来的时间状语连用. (2)If+主语(任何人称和数)+should+动词原形
(3)if+主语(任何人称和数)+were to+动词原形
I (we)should+动词原形
主语+would (might, could)+动词原形

例句：
·If it rained tomorrow, our picnic wouldbe put off.
·If it should rain tomorrow, our picnicwould be put off.
·If it were to rain tomorrow, our picnicwould be put off.
·If you should fail, what would you do?
·If I were to see her tomorrow, I wouldtell her the truth.
·If it were to rain tomorrow, the meetingwould be put off.
·I bet Brazil will win the World Cup. Ifit should lose, I would treat you a meal.
注意：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，动词的形式要根据它所表示的时间来调整。
If you had worked hard, you would be very tired. (从句说的是过去，主句指的是现在。)
If he had followed the doctor’s advice, he would bequite all right now.
If I were you, I would have gone home.
Ifshe hadn’t trained so hard, she wouldn’t be able to run so fast.
虚拟语气的其他句型和用法
1、用在“wish+宾语从句”中，表示很难实现或不能实现的愿望，可以翻译为“但愿…”, “悔不该…”等。表示现在不能实现的愿望，从句的谓语动词用过去式；表示将来的愿望，从句的谓语动词用“would(could)+动词原形”；对过去的事情表示愿望，从句的谓语动词用“had+过去分词” 或“could + have + 过去分词”。Wish 后面的宾语从句必须用虚拟语气，不管这个愿望是否能实现。如：
I wish it were spring all the year round.
I wish you could go with us.
We wish we had arrived there two hours earlier.
注意：wish 与hope接宾语从句的区别在于：hope表示一般可以实现的希望，宾语从句用陈述语气。Wish表示很难或不大可能实现的愿望，宾语从句用虚拟语气。请比较：
We hope we will succeed. (We don’t know if we will succeed.)
We wish we would succeed. (We know we can hardlysucceed.)
2、用在as if/as though, 或even if/eventhough引导的从句中: 这时，如果从句中表示的动作发生在过去，则谓语动词用had＋过去分词形式；如果指的时现在的状况，则用过去式 (be用were)；指将来则用would(should,could)+动词原形。这里只看从句动作发生的时间，与主句的时态没有关系。
Forexample:
Some metals look at first sight as though they weregold.
He looked as if he were an artist.
He speaks English so fluently as if he had studiedEnglish in the U.S.
He always sounds as if he would help you.
When a pencil is partly in a glass of water, itlooks as if it were broken.
Even if he were here, he could not solve theproblem.
3、在It is (high)time (that)…句型中，后面的从句的谓语动词常用过去式 (be的过去式用were), 或用should+ 动词原形 (should 不能省略) 来表示。这句话的意思是“（现在）该…”。For example:
It is time we left/should leave.
It is high time that you got married.
It is time that I bought a car.
Now it is time that you made some sentences by usingthis pattern. Think about what you should do now.
4、在 I would rather(that)…句型中，后面的从句的谓语动词用过去式 (be的过去式用were)。这句话的意思是“我宁可…”，表示说话人的意愿。
Forexample:
I’d rather I were in the rain now.
I’d rather you did not tell him.
5、在表示建议、要求、命令等意思的动词，如arrange,command, demand, desire, insist, order, propose, request, require, suggest,beg, move（提议）后面的宾语从句中，谓语动词用should+ 动词原形，should可以省略，而引导宾语从句的that 不能省略。例如：
We suggested that we (should) have a meeting.
We insisted that they (should) go with us.
The doctor ordered that she (should) stay in bed fora few days.
He demanded that we (should) start right away.
The commander ordered that the bridge (should) bebombed.
The villagers requested that the old building not bepulled down.
欢迎关注智课网网站：http://www.smartstudy.com/

---

洪湖市13638445081： 虚拟语气中为什么用was而不是were,求大神解 - ？
貂章氨基： 在虚拟语气的条bai件从句中 ,当用到be的过去式时,无论主语是人还是物,也不论人称和数,统一用were,但在口语和其他一些非正式文体中,也可能用到was. were式虚拟 英语中叫做“were式虚拟”的这种虚拟语气,通过扭曲时态形式来...

洪湖市13638445081： 虚拟语气中的“是”,是否只能用were,而不能用was? - ？
貂章氨基： 在口语和非正式文体中,第一人称和第三人称单数后的be动词也可以用was.但是考试中,一般一律要求选were.

洪湖市13638445081： 英语虚拟语态中有没有＂was?＂ - ？
貂章氨基： 没有,只有were或had ,should,would等,一般将were,had,should置于句首句子要倒装.

洪湖市13638445081： 为什么 if i were a boy 中的were 不用was? - ？
貂章氨基： 在虚拟语气的从句中,动词'be'的过去时态一律用＂were＂,不用was, 即在从句中be用were代替. If I were you, I would go to look for him. 如果我是你,就会去找他. If he were here, everything would be all right.如果他在这儿,一切都会好的.

洪湖市13638445081： was 和 were有什么区别?？
貂章氨基： 当然不能用,一个是过去的单数,一个是复数形式 was是is的过去式 were是are的过去式 当然在特定的虚拟语气时态下,就要使用were,不能使用was了. 例如 If I were you,I never do this! 我要是你,我绝非如此! 这里就要使用复数形式,不能用was,这在虚拟语气中是规定

洪湖市13638445081： 虚拟语气中从句可不可以用＂was＂? - ？
貂章氨基： 传统来说,应该是不行的 但在口语中是能接受的.比如:If he was here, our team would be stronger. 用he were绝对没错的,但有时说话就说he was.还有在sb.+wish+that从句中,有时用was,也仅限口语中.

洪湖市13638445081： 请问大家表语从句的虚拟语气只能用were吗?可以用was吗?拜托大家 谢谢啦 急!!! - ？
貂章氨基： 用was / were 取决于前面主语的单复数, If I were you , I would do it .这句中主语是I, 只能用were. It looks as if was going to rain .主语是it, 故用was .

洪湖市13638445081： 英语中有种情况只能用were不能was是什么时候?老师说过我忘了 - ？
貂章氨基： 虚拟,表示不曾或不可能.例如:1. if I were a boy, I will ....如果我还是个孩子的话,我会...(其实我已经不可能再回到孩提时代了) 2. If I were there, I would beat him. 如果那时候我在场,我一定会痛扁他一顿(事情已经发生,不可能回去) 从例子可以看出,用were的时候一般都会结合if使用

洪湖市13638445081： 英语中什么时候用到was?不然有时候我想用过去式,一用就用到WAS,老师往往说我错了.到底在什么时候用的到,什么时候不用. - ？
貂章氨基：[答案] 你好: 我现在为你小结一下was-的用法. 1.当主语是单数时,如果句子是主语+系动词+表语结构,那么毫无疑问一般过去式用was;如果是主语谓语宾语结构,那么用动词的过去式做谓语而不能是was 2 当主语是复数时,如果句子是主系表结构,那...

洪湖市13638445081： If和wish后用were还是was - ？
貂章氨基： 在If和wish后要用were,而不是was,这句话指的是在虚拟语气中,在虚拟语气中如果有BE动词的一律都用were,不管是第几人称都用were. 如果不在虚拟语气中,I后面就用was. 主要是你要弄懂哪些是虚拟语气,哪些不是.虚拟语气是永远也不能实现愿望,就象你的例句一样,如果我是你,我就....,你想想我能成为你吗,这是永远都不可能的,这样的句子就是虚拟语气.