could restrengthen
Verbe régulier : restrengthen - restrengthened- restrengthened

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could restrengthen
you could restrengthen
she could restrengthen
we could restrengthen
you could restrengthen
they could restrengthen 	I could be restrengthening
you could be restrengthening
she could be restrengthening
we could be restrengthening
you could be restrengthening
they could be restrengthening	I could have restrengthened
you could have restrengthened
she could have restrengthened
we could have restrengthened
you could have restrengthened
they could have restrengthened	I could have been restrengthening
you could have been restrengthening
she could have been restrengthening
we could have been restrengthening
you could have been restrengthening
they could have been restrengthening	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't restrengthen
you couldn't restrengthen
she couldn't restrengthen
we couldn't restrengthen
you couldn't restrengthen
they couldn't restrengthen 	I couldn't be restrengthening
you couldn't be restrengthening
she couldn't be restrengthening
we couldn't be restrengthening
you couldn't be restrengthening
they couldn't be restrengthening	I couldn't have restrengthened
you couldn't have restrengthened
she couldn't have restrengthened
we couldn't have restrengthened
you couldn't have restrengthened
they couldn't have restrengthened	I couldn't have been restrengthening
you couldn't have been restrengthening
she couldn't have been restrengthening
we couldn't have been restrengthening
you couldn't have been restrengthening
they couldn't have been restrengthening	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I restrengthen?
could you restrengthen?
could she restrengthen?
could we restrengthen?
could you restrengthen?
could they restrengthen? 	could I be restrengthening?
could you be restrengthening?
could she be restrengthening?
could we be restrengthening?
could you be restrengthening?
could they be restrengthening? 	could I have restrengthened?
could you have restrengthened?
could she have restrengthened?
could we have restrengthened?
could you have restrengthened?
could they have restrengthened? 	could I have been restrengthening?
could you have been restrengthening?
could she have been restrengthening?
could we have been restrengthening?
could you have been restrengthening?
could they have been restrengthening? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I restrengthen?
couldn't you restrengthen?
couldn't she restrengthen?
couldn't we restrengthen?
couldn't you restrengthen?
couldn't they restrengthen? 	couldn't I be restrengthening?
couldn't you be restrengthening?
couldn't she be restrengthening?
couldn't we be restrengthening?
couldn't you be restrengthening?
couldn't they be restrengthening? 	couldn't I have restrengthened?
couldn't you have restrengthened?
couldn't she have restrengthened?
couldn't we have restrengthened?
couldn't you have restrengthened?
couldn't they have restrengthened? 	couldn't I have been restrengthening?
couldn't you have been restrengthening?
couldn't she have been restrengthening?
couldn't we have been restrengthening?
couldn't you have been restrengthening?
couldn't they have been restrengthening?