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