could puff
Regelmä&szlig;iges Verb: puff - puffed- puffed

Bestätigung 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I could puff
you could puff
he could puff
we could puff
you could puff
they could puff 	I could be puffing
you could be puffing
he could be puffing
we could be puffing
you could be puffing
they could be puffing	I could have puffed
you could have puffed
he could have puffed
we could have puffed
you could have puffed
they could have puffed	I could have been puffing
you could have been puffing
he could have been puffing
we could have been puffing
you could have been puffing
they could have been puffing	

Negation 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I could not puff
you could not puff
he could not puff
we could not puff
you could not puff
they could not puff 	I could not be puffing
you could not be puffing
he could not be puffing
we could not be puffing
you could not be puffing
they could not be puffing	I could not have puffed
you could not have puffed
he could not have puffed
we could not have puffed
you could not have puffed
they could not have puffed	I could not have been puffing
you could not have been puffing
he could not have been puffing
we could not have been puffing
you could not have been puffing
they could not have been puffing	

Fragende Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
could I puff?
could you puff?
could he puff?
could we puff?
could you puff?
could they puff? 	could I be puffing?
could you be puffing?
could he be puffing?
could we be puffing?
could you be puffing?
could they be puffing? 	could I have puffed?
could you have puffed?
could he have puffed?
could we have puffed?
could you have puffed?
could they have puffed? 	could I have been puffing?
could you have been puffing?
could he have been puffing?
could we have been puffing?
could you have been puffing?
could they have been puffing? 	

Fragende Negation Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
could I not puff?
could you not puff?
could he not puff?
could we not puff?
could you not puff?
could they not puff? 	could I not be puffing?
could you not be puffing?
could he not be puffing?
could we not be puffing?
could you not be puffing?
could they not be puffing? 	could I not have puffed?
could you not have puffed?
could he not have puffed?
could we not have puffed?
could you not have puffed?
could they not have puffed? 	could I not have been puffing?
could you not have been puffing?
could he not have been puffing?
could we not have been puffing?
could you not have been puffing?
could they not have been puffing?