Verbo regular: corroborate - corroborated - corroborated
Afirmación
Forma simple
I must corroborate you must corroborate he must corroborate we must corroborate you must corroborate they must corroborate
Forma con V-ing
I must be corroborating you must be corroborating he must be corroborating we must be corroborating you must be corroborating they must be corroborating
Perfecto
I must have corroborated you must have corroborated he must have corroborated we must have corroborated you must have corroborated they must have corroborated
Perfecto con V-ing
I must have been corroborating you must have been corroborating he must have been corroborating we must have been corroborating you must have been corroborating they must have been corroborating
Negación
Forma simple
I must not corroborate you must not corroborate he must not corroborate we must not corroborate you must not corroborate they must not corroborate
Forma con V-ing
I must not be corroborating you must not be corroborating he must not be corroborating we must not be corroborating you must not be corroborating they must not be corroborating
Perfecto
I must not have corroborated you must not have corroborated he must not have corroborated we must not have corroborated you must not have corroborated they must not have corroborated
Perfecto con V-ing
I must not have been corroborating you must not have been corroborating he must not have been corroborating we must not have been corroborating you must not have been corroborating they must not have been corroborating
Forma interrogativa
Forma simple
must I corroborate? must you corroborate? must he corroborate? must we corroborate? must you corroborate? must they corroborate?
Forma con V-ing
must I be corroborating? must you be corroborating? must he be corroborating? must we be corroborating? must you be corroborating? must they be corroborating?
Perfecto
must I have corroborated? must you have corroborated? must he have corroborated? must we have corroborated? must you have corroborated? must they have corroborated?
Perfecto con V-ing
must I have been corroborating? must you have been corroborating? must he have been corroborating? must we have been corroborating? must you have been corroborating? must they have been corroborating?
Forma interro-negativa
Forma simple
must I not corroborate? must you not corroborate? must he not corroborate? must we not corroborate? must you not corroborate? must they not corroborate?
Forma con V-ing
must I not be corroborating? must you not be corroborating? must he not be corroborating? must we not be corroborating? must you not be corroborating? must they not be corroborating?
Perfecto
must I not have corroborated? must you not have corroborated? must he not have corroborated? must we not have corroborated? must you not have corroborated? must they not have corroborated?
Perfecto con V-ing
must I not have been corroborating? must you not have been corroborating? must he not have been corroborating? must we not have been corroborating? must you not have been corroborating? must they not have been corroborating?