He thinks his aunt is right.(改为反意疑问句） He thinks his aunt is right.____ ____?

题目

He thinks his aunt is right.(改为反意疑问句） He thinks his aunt is right.____ ____?
我认为应该是：isn't he 是对aunt来做答,并且是否定的,但是正确答案是doesn't he,请问为什么用doesn't 而不是isn't
He thinks his aunt is right.(改为反意疑问句） He thinks his aunt is right.____ ____?
我认为应该是：isn't he 是对aunt来做答，并且是否定的，但是正确答案是doesn't he,请问为什么用doesn't 而不是isn't
我写错了，对aunt来回答，应该用isn't she?,你们的答应都是对，你们认为是对He think 来做反意疑问的，这个我明白了，
但是我看到一个规则，就是I think/know/believe/guess/等词汇，要根据后面的that从句来形成反意疑问句的，还举了两个例子，我就是根据 这个两个例子来做的上面这道题，
例1：I know that you don't want to hurt me.do you?
例2：I believe that he will try his best.won't he
例3：I don't think that we can spend so much money on clothes,can wo?

答案

think作谓语的反义疑问句,如果主句的主语为第一人称,反意问句的主语与从句一致；若主句主语为第二、三人称,反意问句的主语与主句一致.
你提的问题主句是第三人称he,反义问句应该和主句一致,所以用doesn't he.
你的参考例子think的主语都是第一人称I,所以反义问句和从句一致.