句型 You'd better do something/You'd better not do something对吗?求详细解答

You'd better do something/You'd better not do something.是正确表述。
解析：had better 的用法如同should（都可归为情态动词） ,后接动词原形。
例：you'd better go to bed ealier.
你最好早点睡。
you'd better go to bed ealier.
你应该早点睡。

You'd better do something/You'd better not to do something
这个才对

You'd better do something/You'd better not to do something

you'd better是you had better的缩写

had better
应该,还是...好
例句:
You had better cross out the last name.
你最好把最后一个名字划掉。
You had better see about rooms for us.
你最好替我们去问问有没有房间。
Before reading the book, you had better ask yourself if you have the time.
在读这本书之前，你最好问问自己是否有时间。

You'd better do something/You'd better not do something正确！

You better do something/You better not do something

never forget, there is no 'to'