will underestimate
Regular verb: underestimate - underestimated- underestimated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'll underestimate
you'll underestimate
he'll underestimate
we'll underestimate
you'll underestimate
they'll underestimate 	I'll be underestimating
you'll be underestimating
he'll be underestimating
we'll be underestimating
you'll be underestimating
they'll be underestimating	I'll have underestimated
you'll have underestimated
he'll have underestimated
we'll have underestimated
you'll have underestimated
they'll have underestimated	I'll have been underestimating
you'll have been underestimating
he'll have been underestimating
we'll have been underestimating
you'll have been underestimating
they'll have been underestimating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I won't underestimate
you won't underestimate
he won't underestimate
we won't underestimate
you won't underestimate
they won't underestimate 	I won't be underestimating
you won't be underestimating
he won't be underestimating
we won't be underestimating
you won't be underestimating
they won't be underestimating	I won't have underestimated
you won't have underestimated
he won't have underestimated
we won't have underestimated
you won't have underestimated
they won't have underestimated	I won't have been underestimating
you won't have been underestimating
he won't have been underestimating
we won't have been underestimating
you won't have been underestimating
they won't have been underestimating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
will I underestimate?
will you underestimate?
will he underestimate?
will we underestimate?
will you underestimate?
will they underestimate? 	will I be underestimating?
will you be underestimating?
will he be underestimating?
will we be underestimating?
will you be underestimating?
will they be underestimating? 	will I have underestimated?
will you have underestimated?
will he have underestimated?
will we have underestimated?
will you have underestimated?
will they have underestimated? 	will I have been underestimating?
will you have been underestimating?
will he have been underestimating?
will we have been underestimating?
will you have been underestimating?
will they have been underestimating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
won't I underestimate?
won't you underestimate?
won't he underestimate?
won't we underestimate?
won't you underestimate?
won't they underestimate? 	won't I be underestimating?
won't you be underestimating?
won't he be underestimating?
won't we be underestimating?
won't you be underestimating?
won't they be underestimating? 	won't I have underestimated?
won't you have underestimated?
won't he have underestimated?
won't we have underestimated?
won't you have underestimated?
won't they have underestimated? 	won't I have been underestimating?
won't you have been underestimating?
won't he have been underestimating?
won't we have been underestimating?
won't you have been underestimating?
won't they have been underestimating?