could interchange
Regelmä&szlig;iges Verb: interchange - interchanged- interchanged

Bestätigung 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I could interchange
you could interchange
he could interchange
we could interchange
you could interchange
they could interchange 	I could be interchanging
you could be interchanging
he could be interchanging
we could be interchanging
you could be interchanging
they could be interchanging	I could have interchanged
you could have interchanged
he could have interchanged
we could have interchanged
you could have interchanged
they could have interchanged	I could have been interchanging
you could have been interchanging
he could have been interchanging
we could have been interchanging
you could have been interchanging
they could have been interchanging	

Negation 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I could not interchange
you could not interchange
he could not interchange
we could not interchange
you could not interchange
they could not interchange 	I could not be interchanging
you could not be interchanging
he could not be interchanging
we could not be interchanging
you could not be interchanging
they could not be interchanging	I could not have interchanged
you could not have interchanged
he could not have interchanged
we could not have interchanged
you could not have interchanged
they could not have interchanged	I could not have been interchanging
you could not have been interchanging
he could not have been interchanging
we could not have been interchanging
you could not have been interchanging
they could not have been interchanging	

Fragende Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
could I interchange?
could you interchange?
could he interchange?
could we interchange?
could you interchange?
could they interchange? 	could I be interchanging?
could you be interchanging?
could he be interchanging?
could we be interchanging?
could you be interchanging?
could they be interchanging? 	could I have interchanged?
could you have interchanged?
could he have interchanged?
could we have interchanged?
could you have interchanged?
could they have interchanged? 	could I have been interchanging?
could you have been interchanging?
could he have been interchanging?
could we have been interchanging?
could you have been interchanging?
could they have been interchanging? 	

Fragende Negation Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
could I not interchange?
could you not interchange?
could he not interchange?
could we not interchange?
could you not interchange?
could they not interchange? 	could I not be interchanging?
could you not be interchanging?
could he not be interchanging?
could we not be interchanging?
could you not be interchanging?
could they not be interchanging? 	could I not have interchanged?
could you not have interchanged?
could he not have interchanged?
could we not have interchanged?
could you not have interchanged?
could they not have interchanged? 	could I not have been interchanging?
could you not have been interchanging?
could he not have been interchanging?
could we not have been interchanging?
could you not have been interchanging?
could they not have been interchanging?