English verb conjugation
MAY LETTER

Regular verb: letter - lettered - lettered

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

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