I could exchange you could exchange he could exchange we could exchange you could exchange they could exchange
Form mit V-ing
I could be exchanging you could be exchanging he could be exchanging we could be exchanging you could be exchanging they could be exchanging
Perfekt
I could have exchanged you could have exchanged he could have exchanged we could have exchanged you could have exchanged they could have exchanged
Perfekt mit V-ing
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
I could not exchange you could not exchange he could not exchange we could not exchange you could not exchange they could not exchange
Form mit V-ing
I could not be exchanging you could not be exchanging he could not be exchanging we could not be exchanging you could not be exchanging they could not be exchanging
Perfekt
I could not have exchanged you could not have exchanged he could not have exchanged we could not have exchanged you could not have exchanged they could not have exchanged
Perfekt mit V-ing
I could not have been exchanging you could not have been exchanging he could not have been exchanging we could not have been exchanging you could not have been exchanging they could not have been exchanging
Fragende Form
Einfache Form
could I exchange? could you exchange? could he exchange? could we exchange? could you exchange? could they exchange?
Form mit V-ing
could I be exchanging? could you be exchanging? could he be exchanging? could we be exchanging? could you be exchanging? could they be exchanging?
Perfekt
could I have exchanged? could you have exchanged? could he have exchanged? could we have exchanged? could you have exchanged? could they have exchanged?
Perfekt mit V-ing
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
could I not exchange? could you not exchange? could he not exchange? could we not exchange? could you not exchange? could they not exchange?
Form mit V-ing
could I not be exchanging? could you not be exchanging? could he not be exchanging? could we not be exchanging? could you not be exchanging? could they not be exchanging?
Perfekt
could I not have exchanged? could you not have exchanged? could he not have exchanged? could we not have exchanged? could you not have exchanged? could they not have exchanged?
Perfekt mit V-ing
could I not have been exchanging? could you not have been exchanging? could he not have been exchanging? could we not have been exchanging? could you not have been exchanging? could they not have been exchanging?