will underheat
Regular verb: underheat - underheated- underheated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'll underheat
you'll underheat
she'll underheat
we'll underheat
you'll underheat
they'll underheat 	I'll be underheating
you'll be underheating
she'll be underheating
we'll be underheating
you'll be underheating
they'll be underheating	I'll have underheated
you'll have underheated
she'll have underheated
we'll have underheated
you'll have underheated
they'll have underheated	I'll have been underheating
you'll have been underheating
she'll have been underheating
we'll have been underheating
you'll have been underheating
they'll have been underheating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I won't underheat
you won't underheat
she won't underheat
we won't underheat
you won't underheat
they won't underheat 	I won't be underheating
you won't be underheating
she won't be underheating
we won't be underheating
you won't be underheating
they won't be underheating	I won't have underheated
you won't have underheated
she won't have underheated
we won't have underheated
you won't have underheated
they won't have underheated	I won't have been underheating
you won't have been underheating
she won't have been underheating
we won't have been underheating
you won't have been underheating
they won't have been underheating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
will I underheat?
will you underheat?
will she underheat?
will we underheat?
will you underheat?
will they underheat? 	will I be underheating?
will you be underheating?
will she be underheating?
will we be underheating?
will you be underheating?
will they be underheating? 	will I have underheated?
will you have underheated?
will she have underheated?
will we have underheated?
will you have underheated?
will they have underheated? 	will I have been underheating?
will you have been underheating?
will she have been underheating?
will we have been underheating?
will you have been underheating?
will they have been underheating? 	

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