could underreport
Regular verb: underreport - underreported- underreported

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could underreport
you could underreport
he could underreport
we could underreport
you could underreport
they could underreport 	I could be underreporting
you could be underreporting
he could be underreporting
we could be underreporting
you could be underreporting
they could be underreporting	I could have underreported
you could have underreported
he could have underreported
we could have underreported
you could have underreported
they could have underreported	I could have been underreporting
you could have been underreporting
he could have been underreporting
we could have been underreporting
you could have been underreporting
they could have been underreporting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not underreport
you could not underreport
he could not underreport
we could not underreport
you could not underreport
they could not underreport 	I could not be underreporting
you could not be underreporting
he could not be underreporting
we could not be underreporting
you could not be underreporting
they could not be underreporting	I could not have underreported
you could not have underreported
he could not have underreported
we could not have underreported
you could not have underreported
they could not have underreported	I could not have been underreporting
you could not have been underreporting
he could not have been underreporting
we could not have been underreporting
you could not have been underreporting
they could not have been underreporting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I underreport?
could you underreport?
could he underreport?
could we underreport?
could you underreport?
could they underreport? 	could I be underreporting?
could you be underreporting?
could he be underreporting?
could we be underreporting?
could you be underreporting?
could they be underreporting? 	could I have underreported?
could you have underreported?
could he have underreported?
could we have underreported?
could you have underreported?
could they have underreported? 	could I have been underreporting?
could you have been underreporting?
could he have been underreporting?
could we have been underreporting?
could you have been underreporting?
could they have been underreporting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not underreport?
could you not underreport?
could he not underreport?
could we not underreport?
could you not underreport?
could they not underreport? 	could I not be underreporting?
could you not be underreporting?
could he not be underreporting?
could we not be underreporting?
could you not be underreporting?
could they not be underreporting? 	could I not have underreported?
could you not have underreported?
could he not have underreported?
could we not have underreported?
could you not have underreported?
could they not have underreported? 	could I not have been underreporting?
could you not have been underreporting?
could he not have been underreporting?
could we not have been underreporting?
could you not have been underreporting?
could they not have been underreporting?