must misbehave
Regular verb: misbehave - misbehaved- misbehaved

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must misbehave
you must misbehave
she must misbehave
we must misbehave
you must misbehave
they must misbehave 	I must be misbehaving
you must be misbehaving
she must be misbehaving
we must be misbehaving
you must be misbehaving
they must be misbehaving	I must have misbehaved
you must have misbehaved
she must have misbehaved
we must have misbehaved
you must have misbehaved
they must have misbehaved	I must have been misbehaving
you must have been misbehaving
she must have been misbehaving
we must have been misbehaving
you must have been misbehaving
they must have been misbehaving	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't misbehave
you mustn't misbehave
she mustn't misbehave
we mustn't misbehave
you mustn't misbehave
they mustn't misbehave 	I mustn't be misbehaving
you mustn't be misbehaving
she mustn't be misbehaving
we mustn't be misbehaving
you mustn't be misbehaving
they mustn't be misbehaving	I mustn't have misbehaved
you mustn't have misbehaved
she mustn't have misbehaved
we mustn't have misbehaved
you mustn't have misbehaved
they mustn't have misbehaved	I mustn't have been misbehaving
you mustn't have been misbehaving
she mustn't have been misbehaving
we mustn't have been misbehaving
you mustn't have been misbehaving
they mustn't have been misbehaving	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I misbehave?
must you misbehave?
must she misbehave?
must we misbehave?
must you misbehave?
must they misbehave? 	must I be misbehaving?
must you be misbehaving?
must she be misbehaving?
must we be misbehaving?
must you be misbehaving?
must they be misbehaving? 	must I have misbehaved?
must you have misbehaved?
must she have misbehaved?
must we have misbehaved?
must you have misbehaved?
must they have misbehaved? 	must I have been misbehaving?
must you have been misbehaving?
must she have been misbehaving?
must we have been misbehaving?
must you have been misbehaving?
must they have been misbehaving? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I misbehave?
mustn't you misbehave?
mustn't she misbehave?
mustn't we misbehave?
mustn't you misbehave?
mustn't they misbehave? 	mustn't I be misbehaving?
mustn't you be misbehaving?
mustn't she be misbehaving?
mustn't we be misbehaving?
mustn't you be misbehaving?
mustn't they be misbehaving? 	mustn't I have misbehaved?
mustn't you have misbehaved?
mustn't she have misbehaved?
mustn't we have misbehaved?
mustn't you have misbehaved?
mustn't they have misbehaved? 	mustn't I have been misbehaving?
mustn't you have been misbehaving?
mustn't she have been misbehaving?
mustn't we have been misbehaving?
mustn't you have been misbehaving?
mustn't they have been misbehaving?