may letter letter
Regular verb: letter letter - letter lettered- letter lettered

, this verb may not exist. Conjugation is given as example.

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may letter letter
you may letter letter
she may letter letter
we may letter letter
you may letter letter
they may letter letter 	I may be letter lettering
you may be letter lettering
she may be letter lettering
we may be letter lettering
you may be letter lettering
they may be letter lettering	I may have letter lettered
you may have letter lettered
she may have letter lettered
we may have letter lettered
you may have letter lettered
they may have letter lettered	I may have been letter lettering
you may have been letter lettering
she may have been letter lettering
we may have been letter lettering
you may have been letter lettering
they may have been letter lettering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't letter letter
you mayn't letter letter
she mayn't letter letter
we mayn't letter letter
you mayn't letter letter
they mayn't letter letter 	I mayn't be letter lettering
you mayn't be letter lettering
she mayn't be letter lettering
we mayn't be letter lettering
you mayn't be letter lettering
they mayn't be letter lettering	I mayn't have letter lettered
you mayn't have letter lettered
she mayn't have letter lettered
we mayn't have letter lettered
you mayn't have letter lettered
they mayn't have letter lettered	I mayn't have been letter lettering
you mayn't have been letter lettering
she mayn't have been letter lettering
we mayn't have been letter lettering
you mayn't have been letter lettering
they mayn't have been letter lettering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I letter letter?
may you letter letter?
may she letter letter?
may we letter letter?
may you letter letter?
may they letter letter? 	may I be letter lettering?
may you be letter lettering?
may she be letter lettering?
may we be letter lettering?
may you be letter lettering?
may they be letter lettering? 	may I have letter lettered?
may you have letter lettered?
may she have letter lettered?
may we have letter lettered?
may you have letter lettered?
may they have letter lettered? 	may I have been letter lettering?
may you have been letter lettering?
may she have been letter lettering?
may we have been letter lettering?
may you have been letter lettering?
may they have been letter lettering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I letter letter?
mayn't you letter letter?
mayn't she letter letter?
mayn't we letter letter?
mayn't you letter letter?
mayn't they letter letter? 	mayn't I be letter lettering?
mayn't you be letter lettering?
mayn't she be letter lettering?
mayn't we be letter lettering?
mayn't you be letter lettering?
mayn't they be letter lettering? 	mayn't I have letter lettered?
mayn't you have letter lettered?
mayn't she have letter lettered?
mayn't we have letter lettered?
mayn't you have letter lettered?
mayn't they have letter lettered? 	mayn't I have been letter lettering?
mayn't you have been letter lettering?
mayn't she have been letter lettering?
mayn't we have been letter lettering?
mayn't you have been letter lettering?
mayn't they have been letter lettering?