* Misbehave: To act badly or inappropriately.
* Overbehave: To behave excessively well, perhaps in a way that feels unnatural or insincere.
* Underbehave: To behave in a way that is considered below the expected standard.
* Rebehave: To behave in a more appropriate or acceptable manner after misbehaving.
* Prebehave: (Not a common word, but could be used to mean) To behave in a way that anticipates or prepares for a future situation.
* Disbehave: (Not a common word, but could be used to mean) To deliberately disobey or refuse to behave in a certain way.
The best prefix to use will depend on the specific context and the intended meaning.