关于shouldn"t have done的用法

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关于shouldn"t have done的用法
他居然知道了这件事,真是奇怪 it seemed strange that he shouldn"t have known about it的翻译为什么不行?

“他居然知道了这件事,真是奇怪”--------的翻译是：
It is strange that he should have known about it.
语法结构：
it is strange that + 句子（谓语动词是：should + 一般式/ 完成式）
又如：
1 It is unthinkable that he should stay in the office for the night.
2 It was strange that Mary should have come late to such an important meeting.

关于shouldn"t have done的用法 shouldn’t have done的几个意思 needn't have done与shouldn't have done的区别? shouldn't have done和wouldn't have done的意思区别shouldn't have done 和 needn't have done should have done 它的否定式是 shouldn't have done should have done ,shouldn't have done.could have done,couldn needn't have done用法 should have done和shouldn't have done,couldn't have 1、shouldn't have done mustn't have done can't havedone 有什么区别 --She shouldn't have done that sort of thing. 第一道；--she shouldn`t have done that sort thing.