English verb conjugation
MAY UNDERVALUE

Regular verb: undervalue - undervalued - undervalued

Affirmation

Simple form	V-ing form
I may undervalue you may undervalue she may undervalue we may undervalue you may undervalue they may undervalue	I may be undervaluing you may be undervaluing she may be undervaluing we may be undervaluing you may be undervaluing they may be undervaluing
Perfect	V-ing perfect
I may have undervalued you may have undervalued she may have undervalued we may have undervalued you may have undervalued they may have undervalued	I may have been undervaluing you may have been undervaluing she may have been undervaluing we may have been undervaluing you may have been undervaluing they may have been undervaluing

Negation

Simple form	V-ing form
I mayn't undervalue you mayn't undervalue she mayn't undervalue we mayn't undervalue you mayn't undervalue they mayn't undervalue	I mayn't be undervaluing you mayn't be undervaluing she mayn't be undervaluing we mayn't be undervaluing you mayn't be undervaluing they mayn't be undervaluing
Perfect	V-ing perfect
I mayn't have undervalued you mayn't have undervalued she mayn't have undervalued we mayn't have undervalued you mayn't have undervalued they mayn't have undervalued	I mayn't have been undervaluing you mayn't have been undervaluing she mayn't have been undervaluing we mayn't have been undervaluing you mayn't have been undervaluing they mayn't have been undervaluing

Interrogative form

Simple form	V-ing form
may I undervalue? may you undervalue? may she undervalue? may we undervalue? may you undervalue? may they undervalue?	may I be undervaluing? may you be undervaluing? may she be undervaluing? may we be undervaluing? may you be undervaluing? may they be undervaluing?
Perfect	V-ing perfect
may I have undervalued? may you have undervalued? may she have undervalued? may we have undervalued? may you have undervalued? may they have undervalued?	may I have been undervaluing? may you have been undervaluing? may she have been undervaluing? may we have been undervaluing? may you have been undervaluing? may they have been undervaluing?

Interro-negative form

Simple form	V-ing form
mayn't I undervalue? mayn't you undervalue? mayn't she undervalue? mayn't we undervalue? mayn't you undervalue? mayn't they undervalue?	mayn't I be undervaluing? mayn't you be undervaluing? mayn't she be undervaluing? mayn't we be undervaluing? mayn't you be undervaluing? mayn't they be undervaluing?
Perfect	V-ing perfect
mayn't I have undervalued? mayn't you have undervalued? mayn't she have undervalued? mayn't we have undervalued? mayn't you have undervalued? mayn't they have undervalued?	mayn't I have been undervaluing? mayn't you have been undervaluing? mayn't she have been undervaluing? mayn't we have been undervaluing? mayn't you have been undervaluing? mayn't they have been undervaluing?