will underachieve
Regular verb: underachieve - underachieved- underachieved

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

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

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

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