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

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

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

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

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