can quack
Regelmä&szlig;iges Verb: quack - quacked- quacked

Bestätigung 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I can quack
you can quack
she can quack
we can quack
you can quack
they can quack 	I can be quacking
you can be quacking
she can be quacking
we can be quacking
you can be quacking
they can be quacking	I can have quacked
you can have quacked
she can have quacked
we can have quacked
you can have quacked
they can have quacked	I can have been quacking
you can have been quacking
she can have been quacking
we can have been quacking
you can have been quacking
they can have been quacking	

Negation 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I cannot quack
you cannot quack
she cannot quack
we cannot quack
you cannot quack
they cannot quack 	I cannot be quacking
you cannot be quacking
she cannot be quacking
we cannot be quacking
you cannot be quacking
they cannot be quacking	I cannot have quacked
you cannot have quacked
she cannot have quacked
we cannot have quacked
you cannot have quacked
they cannot have quacked	I cannot have been quacking
you cannot have been quacking
she cannot have been quacking
we cannot have been quacking
you cannot have been quacking
they cannot have been quacking	

Fragende Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
can I quack?
can you quack?
can she quack?
can we quack?
can you quack?
can they quack? 	can I be quacking?
can you be quacking?
can she be quacking?
can we be quacking?
can you be quacking?
can they be quacking? 	can I have quacked?
can you have quacked?
can she have quacked?
can we have quacked?
can you have quacked?
can they have quacked? 	can I have been quacking?
can you have been quacking?
can she have been quacking?
can we have been quacking?
can you have been quacking?
can they have been quacking? 	

Fragende Negation Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
can I not quack?
can you not quack?
can she not quack?
can we not quack?
can you not quack?
can they not quack? 	can I not be quacking?
can you not be quacking?
can she not be quacking?
can we not be quacking?
can you not be quacking?
can they not be quacking? 	can I not have quacked?
can you not have quacked?
can she not have quacked?
can we not have quacked?
can you not have quacked?
can they not have quacked? 	can I not have been quacking?
can you not have been quacking?
can she not have been quacking?
can we not have been quacking?
can you not have been quacking?
can they not have been quacking?