could underreport
Regular verb: underreport - underreported- underreported

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could underreport
you could underreport
she could underreport
we could underreport
you could underreport
they could underreport 	I could be underreporting
you could be underreporting
she could be underreporting
we could be underreporting
you could be underreporting
they could be underreporting	I could have underreported
you could have underreported
she 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
she 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 couldn't underreport
you couldn't underreport
she couldn't underreport
we couldn't underreport
you couldn't underreport
they couldn't underreport 	I couldn't be underreporting
you couldn't be underreporting
she couldn't be underreporting
we couldn't be underreporting
you couldn't be underreporting
they couldn't be underreporting	I couldn't have underreported
you couldn't have underreported
she couldn't have underreported
we couldn't have underreported
you couldn't have underreported
they couldn't have underreported	I couldn't have been underreporting
you couldn't have been underreporting
she couldn't have been underreporting
we couldn't have been underreporting
you couldn't have been underreporting
they couldn't have been underreporting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I underreport?
could you underreport?
could she underreport?
could we underreport?
could you underreport?
could they underreport? 	could I be underreporting?
could you be underreporting?
could she be underreporting?
could we be underreporting?
could you be underreporting?
could they be underreporting? 	could I have underreported?
could you have underreported?
could she 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 she 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 	
couldn't I underreport?
couldn't you underreport?
couldn't she underreport?
couldn't we underreport?
couldn't you underreport?
couldn't they underreport? 	couldn't I be underreporting?
couldn't you be underreporting?
couldn't she be underreporting?
couldn't we be underreporting?
couldn't you be underreporting?
couldn't they be underreporting? 	couldn't I have underreported?
couldn't you have underreported?
couldn't she have underreported?
couldn't we have underreported?
couldn't you have underreported?
couldn't they have underreported? 	couldn't I have been underreporting?
couldn't you have been underreporting?
couldn't she have been underreporting?
couldn't we have been underreporting?
couldn't you have been underreporting?
couldn't they have been underreporting?