if 错综时间虚拟语气,可以理解为根据主句是与现在事实相反或与现在将来相反确定时态而和if引导的条件句无

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  • 第一句是would have.主句是与将来事实相反的第二句是wouldn't be.主句是与现在事实相反的 would have done 是与过去事实相反的