may tun
Regular verb: tun - tuned- tuned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may tun
you may tun
he may tun
we may tun
you may tun
they may tun 	I may be tuning
you may be tuning
he may be tuning
we may be tuning
you may be tuning
they may be tuning	I may have tuned
you may have tuned
he may have tuned
we may have tuned
you may have tuned
they may have tuned	I may have been tuning
you may have been tuning
he may have been tuning
we may have been tuning
you may have been tuning
they may have been tuning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't tun
you mayn't tun
he mayn't tun
we mayn't tun
you mayn't tun
they mayn't tun 	I mayn't be tuning
you mayn't be tuning
he mayn't be tuning
we mayn't be tuning
you mayn't be tuning
they mayn't be tuning	I mayn't have tuned
you mayn't have tuned
he mayn't have tuned
we mayn't have tuned
you mayn't have tuned
they mayn't have tuned	I mayn't have been tuning
you mayn't have been tuning
he mayn't have been tuning
we mayn't have been tuning
you mayn't have been tuning
they mayn't have been tuning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I tun?
may you tun?
may he tun?
may we tun?
may you tun?
may they tun? 	may I be tuning?
may you be tuning?
may he be tuning?
may we be tuning?
may you be tuning?
may they be tuning? 	may I have tuned?
may you have tuned?
may he have tuned?
may we have tuned?
may you have tuned?
may they have tuned? 	may I have been tuning?
may you have been tuning?
may he have been tuning?
may we have been tuning?
may you have been tuning?
may they have been tuning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I tun?
mayn't you tun?
mayn't he tun?
mayn't we tun?
mayn't you tun?
mayn't they tun? 	mayn't I be tuning?
mayn't you be tuning?
mayn't he be tuning?
mayn't we be tuning?
mayn't you be tuning?
mayn't they be tuning? 	mayn't I have tuned?
mayn't you have tuned?
mayn't he have tuned?
mayn't we have tuned?
mayn't you have tuned?
mayn't they have tuned? 	mayn't I have been tuning?
mayn't you have been tuning?
mayn't he have been tuning?
mayn't we have been tuning?
mayn't you have been tuning?
mayn't they have been tuning?