Why aren't you +动词原形还是doing sth
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Whyaren''tyou+动词原形还是doingsthWhyaren''tyou+动词原形还是doingsthWhyaren''tyou+动词原形还是doingsth如果前面是whyaren''tyou,后
Why aren't you +动词原形还是doing sth
Why aren't you +动词原形还是doing sth
Why aren't you +动词原形还是doing sth
如果前面是why aren't you,后面应该用doing
如果前面是why don't you,就应该用原型了