will underrun
Irregular verb: underrun - underran- underrun

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'll underrun
you'll underrun
she'll underrun
we'll underrun
you'll underrun
they'll underrun 	I'll be underruning
you'll be underruning
she'll be underruning
we'll be underruning
you'll be underruning
they'll be underruning	I'll have underrun
you'll have underrun
she'll have underrun
we'll have underrun
you'll have underrun
they'll have underrun	I'll have been underruning
you'll have been underruning
she'll have been underruning
we'll have been underruning
you'll have been underruning
they'll have been underruning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I won't underrun
you won't underrun
she won't underrun
we won't underrun
you won't underrun
they won't underrun 	I won't be underruning
you won't be underruning
she won't be underruning
we won't be underruning
you won't be underruning
they won't be underruning	I won't have underrun
you won't have underrun
she won't have underrun
we won't have underrun
you won't have underrun
they won't have underrun	I won't have been underruning
you won't have been underruning
she won't have been underruning
we won't have been underruning
you won't have been underruning
they won't have been underruning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
will I underrun?
will you underrun?
will she underrun?
will we underrun?
will you underrun?
will they underrun? 	will I be underruning?
will you be underruning?
will she be underruning?
will we be underruning?
will you be underruning?
will they be underruning? 	will I have underrun?
will you have underrun?
will she have underrun?
will we have underrun?
will you have underrun?
will they have underrun? 	will I have been underruning?
will you have been underruning?
will she have been underruning?
will we have been underruning?
will you have been underruning?
will they have been underruning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
won't I underrun?
won't you underrun?
won't she underrun?
won't we underrun?
won't you underrun?
won't they underrun? 	won't I be underruning?
won't you be underruning?
won't she be underruning?
won't we be underruning?
won't you be underruning?
won't they be underruning? 	won't I have underrun?
won't you have underrun?
won't she have underrun?
won't we have underrun?
won't you have underrun?
won't they have underrun? 	won't I have been underruning?
won't you have been underruning?
won't she have been underruning?
won't we have been underruning?
won't you have been underruning?
won't they have been underruning?