shall underrate
Regular verb: underrate - underrated- underrated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'll underrate
you'll underrate
he'll underrate
we'll underrate
you'll underrate
they'll underrate 	I'll be underrating
you'll be underrating
he'll be underrating
we'll be underrating
you'll be underrating
they'll be underrating	I'll have underrated
you'll have underrated
he'll have underrated
we'll have underrated
you'll have underrated
they'll have underrated	I'll have been underrating
you'll have been underrating
he'll have been underrating
we'll have been underrating
you'll have been underrating
they'll have been underrating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shan't underrate
you shan't underrate
he shan't underrate
we shan't underrate
you shan't underrate
they shan't underrate 	I shan't be underrating
you shan't be underrating
he shan't be underrating
we shan't be underrating
you shan't be underrating
they shan't be underrating	I shan't have underrated
you shan't have underrated
he shan't have underrated
we shan't have underrated
you shan't have underrated
they shan't have underrated	I shan't have been underrating
you shan't have been underrating
he shan't have been underrating
we shan't have been underrating
you shan't have been underrating
they shan't have been underrating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shall I underrate?
shall you underrate?
shall he underrate?
shall we underrate?
shall you underrate?
shall they underrate? 	shall I be underrating?
shall you be underrating?
shall he be underrating?
shall we be underrating?
shall you be underrating?
shall they be underrating? 	shall I have underrated?
shall you have underrated?
shall he have underrated?
shall we have underrated?
shall you have underrated?
shall they have underrated? 	shall I have been underrating?
shall you have been underrating?
shall he have been underrating?
shall we have been underrating?
shall you have been underrating?
shall they have been underrating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shan't I underrate?
shan't you underrate?
shan't he underrate?
shan't we underrate?
shan't you underrate?
shan't they underrate? 	shan't I be underrating?
shan't you be underrating?
shan't he be underrating?
shan't we be underrating?
shan't you be underrating?
shan't they be underrating? 	shan't I have underrated?
shan't you have underrated?
shan't he have underrated?
shan't we have underrated?
shan't you have underrated?
shan't they have underrated? 	shan't I have been underrating?
shan't you have been underrating?
shan't he have been underrating?
shan't we have been underrating?
shan't you have been underrating?
shan't they have been underrating?