may unfasten
Verbe régulier : unfasten - unfastened- unfastened
Traduction française : défaire - ouvrir 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I may unfasten
you may unfasten
he may unfasten
we may unfasten
you may unfasten
they may unfasten 	I may be unfastening
you may be unfastening
he may be unfastening
we may be unfastening
you may be unfastening
they may be unfastening	I may have unfastened
you may have unfastened
he may have unfastened
we may have unfastened
you may have unfastened
they may have unfastened	I may have been unfastening
you may have been unfastening
he may have been unfastening
we may have been unfastening
you may have been unfastening
they may have been unfastening	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mayn't unfasten
you mayn't unfasten
he mayn't unfasten
we mayn't unfasten
you mayn't unfasten
they mayn't unfasten 	I mayn't be unfastening
you mayn't be unfastening
he mayn't be unfastening
we mayn't be unfastening
you mayn't be unfastening
they mayn't be unfastening	I mayn't have unfastened
you mayn't have unfastened
he mayn't have unfastened
we mayn't have unfastened
you mayn't have unfastened
they mayn't have unfastened	I mayn't have been unfastening
you mayn't have been unfastening
he mayn't have been unfastening
we mayn't have been unfastening
you mayn't have been unfastening
they mayn't have been unfastening	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
may I unfasten?
may you unfasten?
may he unfasten?
may we unfasten?
may you unfasten?
may they unfasten? 	may I be unfastening?
may you be unfastening?
may he be unfastening?
may we be unfastening?
may you be unfastening?
may they be unfastening? 	may I have unfastened?
may you have unfastened?
may he have unfastened?
may we have unfastened?
may you have unfastened?
may they have unfastened? 	may I have been unfastening?
may you have been unfastening?
may he have been unfastening?
may we have been unfastening?
may you have been unfastening?
may they have been unfastening? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mayn't I unfasten?
mayn't you unfasten?
mayn't he unfasten?
mayn't we unfasten?
mayn't you unfasten?
mayn't they unfasten? 	mayn't I be unfastening?
mayn't you be unfastening?
mayn't he be unfastening?
mayn't we be unfastening?
mayn't you be unfastening?
mayn't they be unfastening? 	mayn't I have unfastened?
mayn't you have unfastened?
mayn't he have unfastened?
mayn't we have unfastened?
mayn't you have unfastened?
mayn't they have unfastened? 	mayn't I have been unfastening?
mayn't you have been unfastening?
mayn't he have been unfastening?
mayn't we have been unfastening?
mayn't you have been unfastening?
mayn't they have been unfastening?