could behave
Verbe régulier : behave - behaved- behaved
Traduction française : se comporter - se comporter 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could behave
you could behave
she could behave
we could behave
you could behave
they could behave 	I could be behaving
you could be behaving
she could be behaving
we could be behaving
you could be behaving
they could be behaving	I could have behaved
you could have behaved
she could have behaved
we could have behaved
you could have behaved
they could have behaved	I could have been behaving
you could have been behaving
she could have been behaving
we could have been behaving
you could have been behaving
they could have been behaving	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't behave
you couldn't behave
she couldn't behave
we couldn't behave
you couldn't behave
they couldn't behave 	I couldn't be behaving
you couldn't be behaving
she couldn't be behaving
we couldn't be behaving
you couldn't be behaving
they couldn't be behaving	I couldn't have behaved
you couldn't have behaved
she couldn't have behaved
we couldn't have behaved
you couldn't have behaved
they couldn't have behaved	I couldn't have been behaving
you couldn't have been behaving
she couldn't have been behaving
we couldn't have been behaving
you couldn't have been behaving
they couldn't have been behaving	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I behave?
could you behave?
could she behave?
could we behave?
could you behave?
could they behave? 	could I be behaving?
could you be behaving?
could she be behaving?
could we be behaving?
could you be behaving?
could they be behaving? 	could I have behaved?
could you have behaved?
could she have behaved?
could we have behaved?
could you have behaved?
could they have behaved? 	could I have been behaving?
could you have been behaving?
could she have been behaving?
could we have been behaving?
could you have been behaving?
could they have been behaving? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I behave?
couldn't you behave?
couldn't she behave?
couldn't we behave?
couldn't you behave?
couldn't they behave? 	couldn't I be behaving?
couldn't you be behaving?
couldn't she be behaving?
couldn't we be behaving?
couldn't you be behaving?
couldn't they be behaving? 	couldn't I have behaved?
couldn't you have behaved?
couldn't she have behaved?
couldn't we have behaved?
couldn't you have behaved?
couldn't they have behaved? 	couldn't I have been behaving?
couldn't you have been behaving?
couldn't she have been behaving?
couldn't we have been behaving?
couldn't you have been behaving?
couldn't they have been behaving?