could undergo
Unregelmä&szlig;iges Verb: undergo - underwent- undergone

Bestätigung 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I could undergo
you could undergo
he could undergo
we could undergo
you could undergo
they could undergo 	I could be undergoing
you could be undergoing
he could be undergoing
we could be undergoing
you could be undergoing
they could be undergoing	I could have undergone
you could have undergone
he could have undergone
we could have undergone
you could have undergone
they could have undergone	I could have been undergoing
you could have been undergoing
he could have been undergoing
we could have been undergoing
you could have been undergoing
they could have been undergoing	

Negation 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I could not undergo
you could not undergo
he could not undergo
we could not undergo
you could not undergo
they could not undergo 	I could not be undergoing
you could not be undergoing
he could not be undergoing
we could not be undergoing
you could not be undergoing
they could not be undergoing	I could not have undergone
you could not have undergone
he could not have undergone
we could not have undergone
you could not have undergone
they could not have undergone	I could not have been undergoing
you could not have been undergoing
he could not have been undergoing
we could not have been undergoing
you could not have been undergoing
they could not have been undergoing	

Fragende Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
could I undergo?
could you undergo?
could he undergo?
could we undergo?
could you undergo?
could they undergo? 	could I be undergoing?
could you be undergoing?
could he be undergoing?
could we be undergoing?
could you be undergoing?
could they be undergoing? 	could I have undergone?
could you have undergone?
could he have undergone?
could we have undergone?
could you have undergone?
could they have undergone? 	could I have been undergoing?
could you have been undergoing?
could he have been undergoing?
could we have been undergoing?
could you have been undergoing?
could they have been undergoing? 	

Fragende Negation Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
could I not undergo?
could you not undergo?
could he not undergo?
could we not undergo?
could you not undergo?
could they not undergo? 	could I not be undergoing?
could you not be undergoing?
could he not be undergoing?
could we not be undergoing?
could you not be undergoing?
could they not be undergoing? 	could I not have undergone?
could you not have undergone?
could he not have undergone?
could we not have undergone?
could you not have undergone?
could they not have undergone? 	could I not have been undergoing?
could you not have been undergoing?
could he not have been undergoing?
could we not have been undergoing?
could you not have been undergoing?
could they not have been undergoing?