English verb conjugation
MAY UNDERACHIEVE

Regular verb: underachieve - underachieved - underachieved

Affirmation

Simple form	V-ing form
I may underachieve you may underachieve he may underachieve we may underachieve you may underachieve they may underachieve	I may be underachieving you may be underachieving he may be underachieving we may be underachieving you may be underachieving they may be underachieving
Perfect	V-ing perfect
I may have underachieved you may have underachieved he may have underachieved we may have underachieved you may have underachieved they may have underachieved	I may have been underachieving you may have been underachieving he may have been underachieving we may have been underachieving you may have been underachieving they may have been underachieving

Negation

Simple form	V-ing form
I mayn't underachieve you mayn't underachieve he mayn't underachieve we mayn't underachieve you mayn't underachieve they mayn't underachieve	I mayn't be underachieving you mayn't be underachieving he mayn't be underachieving we mayn't be underachieving you mayn't be underachieving they mayn't be underachieving
Perfect	V-ing perfect
I mayn't have underachieved you mayn't have underachieved he mayn't have underachieved we mayn't have underachieved you mayn't have underachieved they mayn't have underachieved	I mayn't have been underachieving you mayn't have been underachieving he mayn't have been underachieving we mayn't have been underachieving you mayn't have been underachieving they mayn't have been underachieving

Interrogative form

Simple form	V-ing form
may I underachieve? may you underachieve? may he underachieve? may we underachieve? may you underachieve? may they underachieve?	may I be underachieving? may you be underachieving? may he be underachieving? may we be underachieving? may you be underachieving? may they be underachieving?
Perfect	V-ing perfect
may I have underachieved? may you have underachieved? may he have underachieved? may we have underachieved? may you have underachieved? may they have underachieved?	may I have been underachieving? may you have been underachieving? may he have been underachieving? may we have been underachieving? may you have been underachieving? may they have been underachieving?

Interro-negative form

Simple form	V-ing form
mayn't I underachieve? mayn't you underachieve? mayn't he underachieve? mayn't we underachieve? mayn't you underachieve? mayn't they underachieve?	mayn't I be underachieving? mayn't you be underachieving? mayn't he be underachieving? mayn't we be underachieving? mayn't you be underachieving? mayn't they be underachieving?
Perfect	V-ing perfect
mayn't I have underachieved? mayn't you have underachieved? mayn't he have underachieved? mayn't we have underachieved? mayn't you have underachieved? mayn't they have underachieved?	mayn't I have been underachieving? mayn't you have been underachieving? mayn't he have been underachieving? mayn't we have been underachieving? mayn't you have been underachieving? mayn't they have been underachieving?