I'd be corroborating you'd be corroborating he'd be corroborating we'd be corroborating you'd be corroborating they'd be corroborating
Perfect
I would've corroborated you would've corroborated he would've corroborated we would've corroborated you would've corroborated they would've corroborated
V-ing perfect
I would've been corroborating you would've been corroborating he would've been corroborating we would've been corroborating you would've been corroborating they would've been corroborating
Negation
Simple form
I wouldn't corroborate you wouldn't corroborate he wouldn't corroborate we wouldn't corroborate you wouldn't corroborate they wouldn't corroborate
V-ing form
I wouldn't be corroborating you wouldn't be corroborating he wouldn't be corroborating we wouldn't be corroborating you wouldn't be corroborating they wouldn't be corroborating
Perfect
I wouldn't have corroborated you wouldn't have corroborated he wouldn't have corroborated we wouldn't have corroborated you wouldn't have corroborated they wouldn't have corroborated
V-ing perfect
I wouldn't have been corroborating you wouldn't have been corroborating he wouldn't have been corroborating we wouldn't have been corroborating you wouldn't have been corroborating they wouldn't have been corroborating
Interrogative form
Simple form
would I corroborate? would you corroborate? would he corroborate? would we corroborate? would you corroborate? would they corroborate?
V-ing form
would I be corroborating? would you be corroborating? would he be corroborating? would we be corroborating? would you be corroborating? would they be corroborating?
Perfect
would I have corroborated? would you have corroborated? would he have corroborated? would we have corroborated? would you have corroborated? would they have corroborated?
V-ing perfect
would I have been corroborating? would you have been corroborating? would he have been corroborating? would we have been corroborating? would you have been corroborating? would they have been corroborating?
Interro-negative form
Simple form
wouldn't I corroborate? wouldn't you corroborate? wouldn't he corroborate? wouldn't we corroborate? wouldn't you corroborate? wouldn't they corroborate?
V-ing form
wouldn't I be corroborating? wouldn't you be corroborating? wouldn't he be corroborating? wouldn't we be corroborating? wouldn't you be corroborating? wouldn't they be corroborating?
Perfect
wouldn't I have corroborated? wouldn't you have corroborated? wouldn't he have corroborated? wouldn't we have corroborated? wouldn't you have corroborated? wouldn't they have corroborated?
V-ing perfect
wouldn't I have been corroborating? wouldn't you have been corroborating? wouldn't he have been corroborating? wouldn't we have been corroborating? wouldn't you have been corroborating? wouldn't they have been corroborating?