could exchange
Regelmä&szlig;iges Verb: exchange - exchanged- exchanged

Bestätigung 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I could exchange
you could exchange
he could exchange
we could exchange
you could exchange
they could exchange 	I could be exchanging
you could be exchanging
he could be exchanging
we could be exchanging
you could be exchanging
they could be exchanging	I could have exchanged
you could have exchanged
he could have exchanged
we could have exchanged
you could have exchanged
they could have exchanged	I could have been exchanging
you could have been exchanging
he could have been exchanging
we could have been exchanging
you could have been exchanging
they could have been exchanging	

Negation 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I couldn't exchange
you couldn't exchange
he couldn't exchange
we couldn't exchange
you couldn't exchange
they couldn't exchange 	I couldn't be exchanging
you couldn't be exchanging
he couldn't be exchanging
we couldn't be exchanging
you couldn't be exchanging
they couldn't be exchanging	I couldn't have exchanged
you couldn't have exchanged
he couldn't have exchanged
we couldn't have exchanged
you couldn't have exchanged
they couldn't have exchanged	I couldn't have been exchanging
you couldn't have been exchanging
he couldn't have been exchanging
we couldn't have been exchanging
you couldn't have been exchanging
they couldn't have been exchanging	

Fragende Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
could I exchange?
could you exchange?
could he exchange?
could we exchange?
could you exchange?
could they exchange? 	could I be exchanging?
could you be exchanging?
could he be exchanging?
could we be exchanging?
could you be exchanging?
could they be exchanging? 	could I have exchanged?
could you have exchanged?
could he have exchanged?
could we have exchanged?
could you have exchanged?
could they have exchanged? 	could I have been exchanging?
could you have been exchanging?
could he have been exchanging?
could we have been exchanging?
could you have been exchanging?
could they have been exchanging? 	

Fragende Negation Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
couldn't I exchange?
couldn't you exchange?
couldn't he exchange?
couldn't we exchange?
couldn't you exchange?
couldn't they exchange? 	couldn't I be exchanging?
couldn't you be exchanging?
couldn't he be exchanging?
couldn't we be exchanging?
couldn't you be exchanging?
couldn't they be exchanging? 	couldn't I have exchanged?
couldn't you have exchanged?
couldn't he have exchanged?
couldn't we have exchanged?
couldn't you have exchanged?
couldn't they have exchanged? 	couldn't I have been exchanging?
couldn't you have been exchanging?
couldn't he have been exchanging?
couldn't we have been exchanging?
couldn't you have been exchanging?
couldn't they have been exchanging?