must restrengthen
Verbe régulier : restrengthen - restrengthened- restrengthened

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

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

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

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