Does she have a bibycle?这句话里面的have为什么不用第三人称单数has?

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Doesshehaveabibycle?这句话里面的have为什么不用第三人称单数has?Doesshehaveabibycle?这句话里面的have为什么不用第三人称单数has?Doesshehav

Does she have a bibycle?这句话里面的have为什么不用第三人称单数has?
Does she have a bibycle?
这句话里面的have为什么不用第三人称单数has?

Does she have a bibycle?这句话里面的have为什么不用第三人称单数has?
Does she have a bicycle?
她有一辆自行车吗?
主语she是第三人称单数,动词应该用三单形式.不过问句开头已经有了三单形式的助动词does,作为谓语的实义动词have就不用改为has了.在助动词后的动词都用原形.

因为前面有助动词does
助动词后的动词要用原形。
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在一般疑问句中：

句首助动词使用第三人称单数形式后，后面的动词要使用原形。

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前面有助动词does，原来的has将do变成does，这是疑问句的规定，在一般现在时中遇到三单就得变

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