I can corroborate you can corroborate she can corroborate we can corroborate you can corroborate they can corroborate
Forme en V-ing
I can be corroborating you can be corroborating she can be corroborating we can be corroborating you can be corroborating they can be corroborating
Perfect
I can have corroborated you can have corroborated she can have corroborated we can have corroborated you can have corroborated they can have corroborated
Perfect en V-ing
I can have been corroborating you can have been corroborating she can have been corroborating we can have been corroborating you can have been corroborating they can have been corroborating
Négation
Forme simple
I can't corroborate you can't corroborate she can't corroborate we can't corroborate you can't corroborate they can't corroborate
Forme en V-ing
I can't be corroborating you can't be corroborating she can't be corroborating we can't be corroborating you can't be corroborating they can't be corroborating
Perfect
I can't have corroborated you can't have corroborated she can't have corroborated we can't have corroborated you can't have corroborated they can't have corroborated
Perfect en V-ing
I can't have been corroborating you can't have been corroborating she can't have been corroborating we can't have been corroborating you can't have been corroborating they can't have been corroborating
Forme interrogative
Forme simple
can I corroborate? can you corroborate? can she corroborate? can we corroborate? can you corroborate? can they corroborate?
Forme en V-ing
can I be corroborating? can you be corroborating? can she be corroborating? can we be corroborating? can you be corroborating? can they be corroborating?
Perfect
can I have corroborated? can you have corroborated? can she have corroborated? can we have corroborated? can you have corroborated? can they have corroborated?
Perfect en V-ing
can I have been corroborating? can you have been corroborating? can she have been corroborating? can we have been corroborating? can you have been corroborating? can they have been corroborating?
Forme interro-négative
Forme simple
can't I corroborate? can't you corroborate? can't she corroborate? can't we corroborate? can't you corroborate? can't they corroborate?
Forme en V-ing
can't I be corroborating? can't you be corroborating? can't she be corroborating? can't we be corroborating? can't you be corroborating? can't they be corroborating?
Perfect
can't I have corroborated? can't you have corroborated? can't she have corroborated? can't we have corroborated? can't you have corroborated? can't they have corroborated?
Perfect en V-ing
can't I have been corroborating? can't you have been corroborating? can't she have been corroborating? can't we have been corroborating? can't you have been corroborating? can't they have been corroborating?