English verb conjugation
MIGHT UNDERESTIMATE

Regular verb: underestimate - underestimated - underestimated

Affirmation

Simple form	V-ing form
I might underestimate you might underestimate she might underestimate we might underestimate you might underestimate they might underestimate	I might be underestimating you might be underestimating she might be underestimating we might be underestimating you might be underestimating they might be underestimating
Perfect	V-ing perfect
I might have underestimated you might have underestimated she might have underestimated we might have underestimated you might have underestimated they might have underestimated	I might have been underestimating you might have been underestimating she might have been underestimating we might have been underestimating you might have been underestimating they might have been underestimating

Negation

Simple form	V-ing form
I might not underestimate you might not underestimate she might not underestimate we might not underestimate you might not underestimate they might not underestimate	I might not be underestimating you might not be underestimating she might not be underestimating we might not be underestimating you might not be underestimating they might not be underestimating
Perfect	V-ing perfect
I might not have underestimated you might not have underestimated she might not have underestimated we might not have underestimated you might not have underestimated they might not have underestimated	I might not have been underestimating you might not have been underestimating she might not have been underestimating we might not have been underestimating you might not have been underestimating they might not have been underestimating

Interrogative form

Simple form	V-ing form
might I underestimate? might you underestimate? might she underestimate? might we underestimate? might you underestimate? might they underestimate?	might I be underestimating? might you be underestimating? might she be underestimating? might we be underestimating? might you be underestimating? might they be underestimating?
Perfect	V-ing perfect
might I have underestimated? might you have underestimated? might she have underestimated? might we have underestimated? might you have underestimated? might they have underestimated?	might I have been underestimating? might you have been underestimating? might she have been underestimating? might we have been underestimating? might you have been underestimating? might they have been underestimating?

Interro-negative form

Simple form	V-ing form
might I not underestimate? might you not underestimate? might she not underestimate? might we not underestimate? might you not underestimate? might they not underestimate?	might I not be underestimating? might you not be underestimating? might she not be underestimating? might we not be underestimating? might you not be underestimating? might they not be underestimating?
Perfect	V-ing perfect
might I not have underestimated? might you not have underestimated? might she not have underestimated? might we not have underestimated? might you not have underestimated? might they not have underestimated?	might I not have been underestimating? might you not have been underestimating? might she not have been underestimating? might we not have been underestimating? might you not have been underestimating? might they not have been underestimating?