could exist
Regelmä&szlig;iges Verb: exist - existed- existed

Bestätigung 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I could exist
you could exist
he could exist
we could exist
you could exist
they could exist 	I could be existing
you could be existing
he could be existing
we could be existing
you could be existing
they could be existing	I could have existed
you could have existed
he could have existed
we could have existed
you could have existed
they could have existed	I could have been existing
you could have been existing
he could have been existing
we could have been existing
you could have been existing
they could have been existing	

Negation 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I couldn't exist
you couldn't exist
he couldn't exist
we couldn't exist
you couldn't exist
they couldn't exist 	I couldn't be existing
you couldn't be existing
he couldn't be existing
we couldn't be existing
you couldn't be existing
they couldn't be existing	I couldn't have existed
you couldn't have existed
he couldn't have existed
we couldn't have existed
you couldn't have existed
they couldn't have existed	I couldn't have been existing
you couldn't have been existing
he couldn't have been existing
we couldn't have been existing
you couldn't have been existing
they couldn't have been existing	

Fragende Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
could I exist?
could you exist?
could he exist?
could we exist?
could you exist?
could they exist? 	could I be existing?
could you be existing?
could he be existing?
could we be existing?
could you be existing?
could they be existing? 	could I have existed?
could you have existed?
could he have existed?
could we have existed?
could you have existed?
could they have existed? 	could I have been existing?
could you have been existing?
could he have been existing?
could we have been existing?
could you have been existing?
could they have been existing? 	

Fragende Negation Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
couldn't I exist?
couldn't you exist?
couldn't he exist?
couldn't we exist?
couldn't you exist?
couldn't they exist? 	couldn't I be existing?
couldn't you be existing?
couldn't he be existing?
couldn't we be existing?
couldn't you be existing?
couldn't they be existing? 	couldn't I have existed?
couldn't you have existed?
couldn't he have existed?
couldn't we have existed?
couldn't you have existed?
couldn't they have existed? 	couldn't I have been existing?
couldn't you have been existing?
couldn't he have been existing?
couldn't we have been existing?
couldn't you have been existing?
couldn't they have been existing?