关于错综条件句if it had not been for their help ,we could not hace

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关于错综条件句
if it had not been for their help ,we could not hace finished the work.翻译是要不是他们的帮助,我们是不可能完成工作的.可这个句子不是错综的句子,我自己改了这个句子if it had not been for their help,we could not finish the work.我想问问我自己改的这个句子对不对,如果这样就叫错综句了吧?我还想问一下,其实,错综和不错综其实都可以,只不过就看你理解的时间了,

混合型的条件句-----你说的错综条件句
　当条件从句与主句所表的时间不一致时,虚拟语气的形式应作相应的调整.主句和从句的谓语动词并不相互呼应,这种条件句叫混合条件句.较多见的混合型条件句是从句用过去完成时（指过去行为）,而主句用一般时（指目前状态）.
　He would pass the test if he had taken my advice．如果他听了我的劝告,他现在会通过考试.
　　If I had spoken to him yesterday, I should know what to do now.
　　假如昨天我对他说了,现在我就知道该怎么办了.
　　You would be much better now if you had taken my advice.
　　假如你接受了我的意见,你现在就会好得多.
　　如条件从句用if I were...,主句则可用表任何时间的虚拟形式.
　　如：　　If I were not busy, I would have come.
　　假如我不忙,我就会去了.(were表过去)
　　If I were you, I would go.
　　假如我是你,我会去的.(were表现在)
所以你的猜想是完全对的,

had it not been for their help,we wouldn't have succeeded为什么 if it had not been for the snow ,we could have climbed the m if it had not been for If it had not been for your help,I would have been late for (Had it not been) for your help ,we'd never have been able t if it had not been for your help ,i couldn't have done it. If it had not been for与If it were not for有什么区别? if it had not been for ..句型对吗 If it had not been for the accident we______much earlier. Were it for their help,we(not overcome)__the difficulties Had it not been for the doctor's careful treatment ,he could 英语翻译19.Had it not been for such help from them,I ___________