英语翻译what have I done?还是 what I have done?出自什么样的语法规则?

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英语翻译whathaveIdone?还是whatIhavedone?出自什么样的语法规则?英语翻译whathaveIdone?还是whatIhavedone?出自什么样的语法规则?英语翻译whatha

英语翻译what have I done?还是 what I have done?出自什么样的语法规则?
英语翻译
what have I done?还是 what I have done?
出自什么样的语法规则?

英语翻译what have I done?还是 what I have done?出自什么样的语法规则?
what have I done 是现在完成时的疑问形式
what I have done 不是一个句子,但是可以引导一个主语从句
what I have done impressed him greatly :我今天做的事情让他印象深刻

what I have done

what have I done?
标准疑问句格式

What have I done today/What did I do today ?因为疑问词what在句中不是做主语,所以后面的句子用倒装的语序

应该是what have I done?
是简单的疑问句句型,疑问词+助动词/be动词/have+主语,就像what is your name ?
只不过这里是现在完成时,用的是have done,have就是助动词。。。