Question

would you not to do sth.否定为什么不可以用don't代替not?

Answer 1

这是you would not to do sth的疑问句形式

这里的would not 中would具备了do的功能

若改写成you do not to do sth的话，疑问句形式就是，do you not to do sth.

所以类似将would 提前，疑问句形式就变成了would you not to do sth。