Question

you'd better反意疑问句到底用wouldyou 还是had you?

Answer 1

you'd better=you had better,
因此反义疑问句应为had you

Answer 2

应该是 won'd you 反义疑问句是前边肯定 后边就否定 前边否定 后边就肯定

Answer 3

It's really a pity that so many people donnot know that you'd better stands for you would better.
The answer is wouldn't you.
You cannot use would you or would not you,
just wouldn't you.

Answer 4

had you或did you

Answer 5

wouldyou
you'd better=you would better
^^