I could prolong you could prolong he could prolong we could prolong you could prolong they could prolong
Form mit V-ing
I could be prolonging you could be prolonging he could be prolonging we could be prolonging you could be prolonging they could be prolonging
Perfekt
I could have prolonged you could have prolonged he could have prolonged we could have prolonged you could have prolonged they could have prolonged
Perfekt mit V-ing
I could have been prolonging you could have been prolonging he could have been prolonging we could have been prolonging you could have been prolonging they could have been prolonging
Negation
Einfache Form
I couldn't prolong you couldn't prolong he couldn't prolong we couldn't prolong you couldn't prolong they couldn't prolong
Form mit V-ing
I couldn't be prolonging you couldn't be prolonging he couldn't be prolonging we couldn't be prolonging you couldn't be prolonging they couldn't be prolonging
Perfekt
I couldn't have prolonged you couldn't have prolonged he couldn't have prolonged we couldn't have prolonged you couldn't have prolonged they couldn't have prolonged
Perfekt mit V-ing
I couldn't have been prolonging you couldn't have been prolonging he couldn't have been prolonging we couldn't have been prolonging you couldn't have been prolonging they couldn't have been prolonging
Fragende Form
Einfache Form
could I prolong? could you prolong? could he prolong? could we prolong? could you prolong? could they prolong?
Form mit V-ing
could I be prolonging? could you be prolonging? could he be prolonging? could we be prolonging? could you be prolonging? could they be prolonging?
Perfekt
could I have prolonged? could you have prolonged? could he have prolonged? could we have prolonged? could you have prolonged? could they have prolonged?
Perfekt mit V-ing
could I have been prolonging? could you have been prolonging? could he have been prolonging? could we have been prolonging? could you have been prolonging? could they have been prolonging?
Fragende Negation Form
Einfache Form
couldn't I prolong? couldn't you prolong? couldn't he prolong? couldn't we prolong? couldn't you prolong? couldn't they prolong?
Form mit V-ing
couldn't I be prolonging? couldn't you be prolonging? couldn't he be prolonging? couldn't we be prolonging? couldn't you be prolonging? couldn't they be prolonging?
Perfekt
couldn't I have prolonged? couldn't you have prolonged? couldn't he have prolonged? couldn't we have prolonged? couldn't you have prolonged? couldn't they have prolonged?
Perfekt mit V-ing
couldn't I have been prolonging? couldn't you have been prolonging? couldn't he have been prolonging? couldn't we have been prolonging? couldn't you have been prolonging? couldn't they have been prolonging?