could curtain
Regelmä&szlig;iges Verb: curtain - curtained- curtained

Bestätigung 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I could curtain
you could curtain
she could curtain
we could curtain
you could curtain
they could curtain 	I could be curtaining
you could be curtaining
she could be curtaining
we could be curtaining
you could be curtaining
they could be curtaining	I could have curtained
you could have curtained
she could have curtained
we could have curtained
you could have curtained
they could have curtained	I could have been curtaining
you could have been curtaining
she could have been curtaining
we could have been curtaining
you could have been curtaining
they could have been curtaining	

Negation 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I could not curtain
you could not curtain
she could not curtain
we could not curtain
you could not curtain
they could not curtain 	I could not be curtaining
you could not be curtaining
she could not be curtaining
we could not be curtaining
you could not be curtaining
they could not be curtaining	I could not have curtained
you could not have curtained
she could not have curtained
we could not have curtained
you could not have curtained
they could not have curtained	I could not have been curtaining
you could not have been curtaining
she could not have been curtaining
we could not have been curtaining
you could not have been curtaining
they could not have been curtaining	

Fragende Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
could I curtain?
could you curtain?
could she curtain?
could we curtain?
could you curtain?
could they curtain? 	could I be curtaining?
could you be curtaining?
could she be curtaining?
could we be curtaining?
could you be curtaining?
could they be curtaining? 	could I have curtained?
could you have curtained?
could she have curtained?
could we have curtained?
could you have curtained?
could they have curtained? 	could I have been curtaining?
could you have been curtaining?
could she have been curtaining?
could we have been curtaining?
could you have been curtaining?
could they have been curtaining? 	

Fragende Negation Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
could I not curtain?
could you not curtain?
could she not curtain?
could we not curtain?
could you not curtain?
could they not curtain? 	could I not be curtaining?
could you not be curtaining?
could she not be curtaining?
could we not be curtaining?
could you not be curtaining?
could they not be curtaining? 	could I not have curtained?
could you not have curtained?
could she not have curtained?
could we not have curtained?
could you not have curtained?
could they not have curtained? 	could I not have been curtaining?
could you not have been curtaining?
could she not have been curtaining?
could we not have been curtaining?
could you not have been curtaining?
could they not have been curtaining?