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关于虚拟语气与现在事实相反 主句是should would could might +do 那要是被动语态呢?还有与过去

来源:学生作业帮 编辑:作业帮 分类:综合作业 时间:2024/06/05 23:58:11
关于虚拟语气
与现在事实相反 主句是should would could might +do 那要是被动语态呢?还有与过去事实相反 主句又变成什么样?
SHOULD WOULD COULD MIGHT +BE DONE
过:SHOULD WOULD COULD MIGHT +HAVE DONE
它的被动是SHOULD WOULD COULD MIGHT +HAVE BEEN DONE