could misbehave
Regular verb: misbehave - misbehaved- misbehaved

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

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

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

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