must refasten
Verbe régulier : refasten - refastened- refastened

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must refasten
you must refasten
she must refasten
we must refasten
you must refasten
they must refasten 	I must be refastening
you must be refastening
she must be refastening
we must be refastening
you must be refastening
they must be refastening	I must have refastened
you must have refastened
she must have refastened
we must have refastened
you must have refastened
they must have refastened	I must have been refastening
you must have been refastening
she must have been refastening
we must have been refastening
you must have been refastening
they must have been refastening	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't refasten
you mustn't refasten
she mustn't refasten
we mustn't refasten
you mustn't refasten
they mustn't refasten 	I mustn't be refastening
you mustn't be refastening
she mustn't be refastening
we mustn't be refastening
you mustn't be refastening
they mustn't be refastening	I mustn't have refastened
you mustn't have refastened
she mustn't have refastened
we mustn't have refastened
you mustn't have refastened
they mustn't have refastened	I mustn't have been refastening
you mustn't have been refastening
she mustn't have been refastening
we mustn't have been refastening
you mustn't have been refastening
they mustn't have been refastening	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I refasten?
must you refasten?
must she refasten?
must we refasten?
must you refasten?
must they refasten? 	must I be refastening?
must you be refastening?
must she be refastening?
must we be refastening?
must you be refastening?
must they be refastening? 	must I have refastened?
must you have refastened?
must she have refastened?
must we have refastened?
must you have refastened?
must they have refastened? 	must I have been refastening?
must you have been refastening?
must she have been refastening?
must we have been refastening?
must you have been refastening?
must they have been refastening? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I refasten?
mustn't you refasten?
mustn't she refasten?
mustn't we refasten?
mustn't you refasten?
mustn't they refasten? 	mustn't I be refastening?
mustn't you be refastening?
mustn't she be refastening?
mustn't we be refastening?
mustn't you be refastening?
mustn't they be refastening? 	mustn't I have refastened?
mustn't you have refastened?
mustn't she have refastened?
mustn't we have refastened?
mustn't you have refastened?
mustn't they have refastened? 	mustn't I have been refastening?
mustn't you have been refastening?
mustn't she have been refastening?
mustn't we have been refastening?
mustn't you have been refastening?
mustn't they have been refastening?