英语语法.1·we would have won if we had had thousands of fans screaming.请帮忙分析一下句子用的是什么时态,为什么有两个had?还有would have won 是would have done 2·I realized that i forgot to lock the classroom due to carele

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英语语法.1·we would have won if we had had thousands of fans screaming.请帮忙分析一下句子用的是什么时态,为什么有两个had?还有would have won 是would have done 2·I realized that i forgot to lock the classroom due to carele
英语语法.
1·we would have won if we had had thousands of fans screaming.请帮忙分析一下句子用的是什么时态,为什么有两个had?还有would have won 是would have done
2·I realized that i forgot to lock the classroom due to carelessness.请问不用在forgot 前面加个什么·have吗?（用完成时什么的?

英语语法.1·we would have won if we had had thousands of fans screaming.请帮忙分析一下句子用的是什么时态,为什么有两个had?还有would have won 是would have done 2·I realized that i forgot to lock the classroom due to carele
1 虚拟语态
用if条件从句表示的虚拟条件,是虚拟条件最普通的方式.
　　① 虚拟现在时表示与现在事实相反的假设,其if 从句的谓语形式用动词的过去式(be 一般用were),主句用would/ should/ could/ might +动词原形,例如：If I were in your position I would marry her.
　　② 虚拟过去时是表示与过去事实相反的假设,if 从句的谓语形式用过去完成时即had＋过去分词,主句用would / should / could / might + have +过去分词,例如：If it had not rained so hard yesterday we could have played tennis.
　　③ 大多数的虚拟条件句属于上面三种情况的一种,但并不排除存在条件和后果中,一个和现在情况相反,另一个和过去情况相反,例如：If you had followed what the doctor said,you would not been so painful now.这个句子在高中出现频率颇高.
本例是第二种情况 if 从句的谓语用HAD加过去分词这是第一个had 二第二个had是原句中的动词“有”（我们有上千粉丝尖叫）把它改成过去分词就出现了第二个had
准确来讲would have won不是would have done句型而是if虚拟第二种情况的固定形式不过意思是差不多的都是本可以...而没有
2 我意识到我忘了.这里用简单的过去时就可以表示不突出“意识到”和“忘了”之前的先后关系可能二者时间相差也不多可能仅仅是不突出而已；如果非要突出先后关系或是时间差很大想用完成时也应是加had 用过去完成时

1. 过去完成时的虚拟语气。有两个had是因为时态的缘故。would have won 是would have done的句型，其实还是时态而已。
2. 此处就是指一般过去时。如果变成完成时，那就变成了have forgoten.但此处不能加，加了意思就不对了。

希望对你有帮助。

1. 虚拟语气，因为是发生在过去的事情，用虚拟语气时，要往后再退一步，所以是过去完成时，才会出现两个had，同样，would have done 也是配套的虚拟语气用法。

这个句子的含义是：如果我们比赛时也有成千上万的粉丝在尖叫，我们本来也可能赢的（实际是我们输了，而说这句话的人认为是没有粉丝尖叫的原因）。

2. 我意识到因为粗心，忘记把教室的门锁上了。...

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