I think it isn't a bad way.这句话有误吗（要不要否定前置）

当句子以i think/suppose/believe开头，否定要把not提前
而反意疑问句是看从句，如句子主语是否定的，要把not放到从句里帮助理解（就是反意疑问句是肯定的，反之，是否定）

应该是：I don't think it is a bad way.

是吗？那你可以问问你们的任课老师，看看是怎么回事？按道理来说是错的！你可以找老师问问看……

错了`要前置

I don't think it is a bad way

Do动词要前置
所以是I don't think it is a bad way.
而非I think it isn't a bad way.
若不前置,你也可以说I think it is a good way.

应该是：I don't think it is a bad way.