English verb conjugation
MAY UPTURN

Regular verb: upturn - upturned - upturned

Affirmation

Simple form	V-ing form
I may upturn you may upturn she may upturn we may upturn you may upturn they may upturn	I may be upturning you may be upturning she may be upturning we may be upturning you may be upturning they may be upturning
Perfect	V-ing perfect
I may have upturned you may have upturned she may have upturned we may have upturned you may have upturned they may have upturned	I may have been upturning you may have been upturning she may have been upturning we may have been upturning you may have been upturning they may have been upturning

Negation

Simple form	V-ing form
I mayn't upturn you mayn't upturn she mayn't upturn we mayn't upturn you mayn't upturn they mayn't upturn	I mayn't be upturning you mayn't be upturning she mayn't be upturning we mayn't be upturning you mayn't be upturning they mayn't be upturning
Perfect	V-ing perfect
I mayn't have upturned you mayn't have upturned she mayn't have upturned we mayn't have upturned you mayn't have upturned they mayn't have upturned	I mayn't have been upturning you mayn't have been upturning she mayn't have been upturning we mayn't have been upturning you mayn't have been upturning they mayn't have been upturning

Interrogative form

Simple form	V-ing form
may I upturn? may you upturn? may she upturn? may we upturn? may you upturn? may they upturn?	may I be upturning? may you be upturning? may she be upturning? may we be upturning? may you be upturning? may they be upturning?
Perfect	V-ing perfect
may I have upturned? may you have upturned? may she have upturned? may we have upturned? may you have upturned? may they have upturned?	may I have been upturning? may you have been upturning? may she have been upturning? may we have been upturning? may you have been upturning? may they have been upturning?

Interro-negative form

Simple form	V-ing form
mayn't I upturn? mayn't you upturn? mayn't she upturn? mayn't we upturn? mayn't you upturn? mayn't they upturn?	mayn't I be upturning? mayn't you be upturning? mayn't she be upturning? mayn't we be upturning? mayn't you be upturning? mayn't they be upturning?
Perfect	V-ing perfect
mayn't I have upturned? mayn't you have upturned? mayn't she have upturned? mayn't we have upturned? mayn't you have upturned? mayn't they have upturned?	mayn't I have been upturning? mayn't you have been upturning? mayn't she have been upturning? mayn't we have been upturning? mayn't you have been upturning? mayn't they have been upturning?