I could use you could use she could use we could use you could use they could use
Form mit V-ing
I could be using you could be using she could be using we could be using you could be using they could be using
Perfekt
I could have used you could have used she could have used we could have used you could have used they could have used
Perfekt mit V-ing
I could have been using you could have been using she could have been using we could have been using you could have been using they could have been using
Negation
Einfache Form
I could not use you could not use she could not use we could not use you could not use they could not use
Form mit V-ing
I could not be using you could not be using she could not be using we could not be using you could not be using they could not be using
Perfekt
I could not have used you could not have used she could not have used we could not have used you could not have used they could not have used
Perfekt mit V-ing
I could not have been using you could not have been using she could not have been using we could not have been using you could not have been using they could not have been using
Fragende Form
Einfache Form
could I use? could you use? could she use? could we use? could you use? could they use?
Form mit V-ing
could I be using? could you be using? could she be using? could we be using? could you be using? could they be using?
Perfekt
could I have used? could you have used? could she have used? could we have used? could you have used? could they have used?
Perfekt mit V-ing
could I have been using? could you have been using? could she have been using? could we have been using? could you have been using? could they have been using?
Fragende Negation Form
Einfache Form
could I not use? could you not use? could she not use? could we not use? could you not use? could they not use?
Form mit V-ing
could I not be using? could you not be using? could she not be using? could we not be using? could you not be using? could they not be using?
Perfekt
could I not have used? could you not have used? could she not have used? could we not have used? could you not have used? could they not have used?
Perfekt mit V-ing
could I not have been using? could you not have been using? could she not have been using? could we not have been using? could you not have been using? could they not have been using?