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Have you paid the taxi-driver?为什么不用Do

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Have you paid the taxi-driver?为什么不用Do
Have you paid the taxi-driver?为什么不用Do
这是个现在完成时的句子,结构是:have/has + 过去分词( paid),改为一般疑问句时把助动词have/has提前到句首,所以不用do,例如:They have finished doing their homework.一般疑问句:Have they finished doing their homework?
如果是一般现在时的一般疑问句就用助动词:do/does + 主语 + 动词原形,如:They go to school by bus.
Do they go to school by bus?