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

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

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

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

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