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 cannot corroborate you cannot corroborate she cannot corroborate we cannot corroborate you cannot corroborate they cannot corroborate
Forme en V-ing
I cannot be corroborating you cannot be corroborating she cannot be corroborating we cannot be corroborating you cannot be corroborating they cannot be corroborating
Perfect
I cannot have corroborated you cannot have corroborated she cannot have corroborated we cannot have corroborated you cannot have corroborated they cannot have corroborated
Perfect en V-ing
I cannot have been corroborating you cannot have been corroborating she cannot have been corroborating we cannot have been corroborating you cannot have been corroborating they cannot 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 I not corroborate? can you not corroborate? can she not corroborate? can we not corroborate? can you not corroborate? can they not corroborate?
Forme en V-ing
can I not be corroborating? can you not be corroborating? can she not be corroborating? can we not be corroborating? can you not be corroborating? can they not be corroborating?
Perfect
can I not have corroborated? can you not have corroborated? can she not have corroborated? can we not have corroborated? can you not have corroborated? can they not have corroborated?
Perfect en V-ing
can I not have been corroborating? can you not have been corroborating? can she not have been corroborating? can we not have been corroborating? can you not have been corroborating? can they not have been corroborating?