can corroborate
Verbo regolare: corroborate - corroborated- corroborated

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I can corroborate
you can corroborate
she can corroborate
we can corroborate
you can corroborate
they can corroborate 	I can be corroborating
you can be corroborating
she can be corroborating
we can be corroborating
you can be corroborating
they can be corroborating	I can have corroborated
you can have corroborated
she can have corroborated
we can have corroborated
you can have corroborated
they can have corroborated	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	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I cannot corroborate
you cannot corroborate
she cannot corroborate
we cannot corroborate
you cannot corroborate
they cannot corroborate 	I cannot be corroborating
you cannot be corroborating
she cannot be corroborating
we cannot be corroborating
you cannot be corroborating
they cannot be corroborating	I cannot have corroborated
you cannot have corroborated
she cannot have corroborated
we cannot have corroborated
you cannot have corroborated
they cannot have corroborated	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	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
can I corroborate?
can you corroborate?
can she corroborate?
can we corroborate?
can you corroborate?
can they corroborate? 	can I be corroborating?
can you be corroborating?
can she be corroborating?
can we be corroborating?
can you be corroborating?
can they be corroborating? 	can I have corroborated?
can you have corroborated?
can she have corroborated?
can we have corroborated?
can you have corroborated?
can they have corroborated? 	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? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
can I not corroborate?
can you not corroborate?
can she not corroborate?
can we not corroborate?
can you not corroborate?
can they not corroborate? 	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? 	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? 	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?