can underrate
Regular verb: underrate - underrated- underrated

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

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

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

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