may fasten
Verbo regolare: fasten - fastened- fastened

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I may fasten
you may fasten
she may fasten
we may fasten
you may fasten
they may fasten 	I may be fastening
you may be fastening
she may be fastening
we may be fastening
you may be fastening
they may be fastening	I may have fastened
you may have fastened
she may have fastened
we may have fastened
you may have fastened
they may have fastened	I may have been fastening
you may have been fastening
she may have been fastening
we may have been fastening
you may have been fastening
they may have been fastening	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I mayn't fasten
you mayn't fasten
she mayn't fasten
we mayn't fasten
you mayn't fasten
they mayn't fasten 	I mayn't be fastening
you mayn't be fastening
she mayn't be fastening
we mayn't be fastening
you mayn't be fastening
they mayn't be fastening	I mayn't have fastened
you mayn't have fastened
she mayn't have fastened
we mayn't have fastened
you mayn't have fastened
they mayn't have fastened	I mayn't have been fastening
you mayn't have been fastening
she mayn't have been fastening
we mayn't have been fastening
you mayn't have been fastening
they mayn't have been fastening	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
may I fasten?
may you fasten?
may she fasten?
may we fasten?
may you fasten?
may they fasten? 	may I be fastening?
may you be fastening?
may she be fastening?
may we be fastening?
may you be fastening?
may they be fastening? 	may I have fastened?
may you have fastened?
may she have fastened?
may we have fastened?
may you have fastened?
may they have fastened? 	may I have been fastening?
may you have been fastening?
may she have been fastening?
may we have been fastening?
may you have been fastening?
may they have been fastening? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
mayn't I fasten?
mayn't you fasten?
mayn't she fasten?
mayn't we fasten?
mayn't you fasten?
mayn't they fasten? 	mayn't I be fastening?
mayn't you be fastening?
mayn't she be fastening?
mayn't we be fastening?
mayn't you be fastening?
mayn't they be fastening? 	mayn't I have fastened?
mayn't you have fastened?
mayn't she have fastened?
mayn't we have fastened?
mayn't you have fastened?
mayn't they have fastened? 	mayn't I have been fastening?
mayn't you have been fastening?
mayn't she have been fastening?
mayn't we have been fastening?
mayn't you have been fastening?
mayn't they have been fastening?