I could filter you could filter he could filter we could filter you could filter they could filter
Form mit V-ing
I could be filtering you could be filtering he could be filtering we could be filtering you could be filtering they could be filtering
Perfekt
I could have filtered you could have filtered he could have filtered we could have filtered you could have filtered they could have filtered
Perfekt mit V-ing
I could have been filtering you could have been filtering he could have been filtering we could have been filtering you could have been filtering they could have been filtering
Negation
Einfache Form
I couldn't filter you couldn't filter he couldn't filter we couldn't filter you couldn't filter they couldn't filter
Form mit V-ing
I couldn't be filtering you couldn't be filtering he couldn't be filtering we couldn't be filtering you couldn't be filtering they couldn't be filtering
Perfekt
I couldn't have filtered you couldn't have filtered he couldn't have filtered we couldn't have filtered you couldn't have filtered they couldn't have filtered
Perfekt mit V-ing
I couldn't have been filtering you couldn't have been filtering he couldn't have been filtering we couldn't have been filtering you couldn't have been filtering they couldn't have been filtering
Fragende Form
Einfache Form
could I filter? could you filter? could he filter? could we filter? could you filter? could they filter?
Form mit V-ing
could I be filtering? could you be filtering? could he be filtering? could we be filtering? could you be filtering? could they be filtering?
Perfekt
could I have filtered? could you have filtered? could he have filtered? could we have filtered? could you have filtered? could they have filtered?
Perfekt mit V-ing
could I have been filtering? could you have been filtering? could he have been filtering? could we have been filtering? could you have been filtering? could they have been filtering?
Fragende Negation Form
Einfache Form
couldn't I filter? couldn't you filter? couldn't he filter? couldn't we filter? couldn't you filter? couldn't they filter?
Form mit V-ing
couldn't I be filtering? couldn't you be filtering? couldn't he be filtering? couldn't we be filtering? couldn't you be filtering? couldn't they be filtering?
Perfekt
couldn't I have filtered? couldn't you have filtered? couldn't he have filtered? couldn't we have filtered? couldn't you have filtered? couldn't they have filtered?
Perfekt mit V-ing
couldn't I have been filtering? couldn't you have been filtering? couldn't he have been filtering? couldn't we have been filtering? couldn't you have been filtering? couldn't they have been filtering?