English verb conjugation
MIGHT UNDERUSE

Regular verb: underuse - underused - underused

Affirmation

Simple form	V-ing form
I might underuse you might underuse he might underuse we might underuse you might underuse they might underuse	I might be underusing you might be underusing he might be underusing we might be underusing you might be underusing they might be underusing
Perfect	V-ing perfect
I might have underused you might have underused he might have underused we might have underused you might have underused they might have underused	I might have been underusing you might have been underusing he might have been underusing we might have been underusing you might have been underusing they might have been underusing

Negation

Simple form	V-ing form
I might not underuse you might not underuse he might not underuse we might not underuse you might not underuse they might not underuse	I might not be underusing you might not be underusing he might not be underusing we might not be underusing you might not be underusing they might not be underusing
Perfect	V-ing perfect
I might not have underused you might not have underused he might not have underused we might not have underused you might not have underused they might not have underused	I might not have been underusing you might not have been underusing he might not have been underusing we might not have been underusing you might not have been underusing they might not have been underusing

Interrogative form

Simple form	V-ing form
might I underuse? might you underuse? might he underuse? might we underuse? might you underuse? might they underuse?	might I be underusing? might you be underusing? might he be underusing? might we be underusing? might you be underusing? might they be underusing?
Perfect	V-ing perfect
might I have underused? might you have underused? might he have underused? might we have underused? might you have underused? might they have underused?	might I have been underusing? might you have been underusing? might he have been underusing? might we have been underusing? might you have been underusing? might they have been underusing?

Interro-negative form

Simple form	V-ing form
might I not underuse? might you not underuse? might he not underuse? might we not underuse? might you not underuse? might they not underuse?	might I not be underusing? might you not be underusing? might he not be underusing? might we not be underusing? might you not be underusing? might they not be underusing?
Perfect	V-ing perfect
might I not have underused? might you not have underused? might he not have underused? might we not have underused? might you not have underused? might they not have underused?	might I not have been underusing? might you not have been underusing? might he not have been underusing? might we not have been underusing? might you not have been underusing? might they not have been underusing?