can undergo
Verbo irregular: undergo - underwent- undergone

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can undergo
you can undergo
she can undergo
we can undergo
you can undergo
they can undergo 	I can be undergoing
you can be undergoing
she can be undergoing
we can be undergoing
you can be undergoing
they can be undergoing	I can have undergone
you can have undergone
she can have undergone
we can have undergone
you can have undergone
they can have undergone	I can have been undergoing
you can have been undergoing
she can have been undergoing
we can have been undergoing
you can have been undergoing
they can have been undergoing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I cannot undergo
you cannot undergo
she cannot undergo
we cannot undergo
you cannot undergo
they cannot undergo 	I cannot be undergoing
you cannot be undergoing
she cannot be undergoing
we cannot be undergoing
you cannot be undergoing
they cannot be undergoing	I cannot have undergone
you cannot have undergone
she cannot have undergone
we cannot have undergone
you cannot have undergone
they cannot have undergone	I cannot have been undergoing
you cannot have been undergoing
she cannot have been undergoing
we cannot have been undergoing
you cannot have been undergoing
they cannot have been undergoing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I undergo?
can you undergo?
can she undergo?
can we undergo?
can you undergo?
can they undergo? 	can I be undergoing?
can you be undergoing?
can she be undergoing?
can we be undergoing?
can you be undergoing?
can they be undergoing? 	can I have undergone?
can you have undergone?
can she have undergone?
can we have undergone?
can you have undergone?
can they have undergone? 	can I have been undergoing?
can you have been undergoing?
can she have been undergoing?
can we have been undergoing?
can you have been undergoing?
can they have been undergoing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I not undergo?
can you not undergo?
can she not undergo?
can we not undergo?
can you not undergo?
can they not undergo? 	can I not be undergoing?
can you not be undergoing?
can she not be undergoing?
can we not be undergoing?
can you not be undergoing?
can they not be undergoing? 	can I not have undergone?
can you not have undergone?
can she not have undergone?
can we not have undergone?
can you not have undergone?
can they not have undergone? 	can I not have been undergoing?
can you not have been undergoing?
can she not have been undergoing?
can we not have been undergoing?
can you not have been undergoing?
can they not have been undergoing?