English verb conjugation
MAY UPTURN

Regular verb: upturn - upturned - upturned

Affirmation

Simple form	V-ing form
I may upturn you may upturn he may upturn we may upturn you may upturn they may upturn	I may be upturning you may be upturning he 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 he 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 he 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 he 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 he 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 he 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 he 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 he upturn? may we upturn? may you upturn? may they upturn?	may I be upturning? may you be upturning? may he 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 he 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 he 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 he 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 he 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 he 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 he have been upturning? mayn't we have been upturning? mayn't you have been upturning? mayn't they have been upturning?