I could refine you could refine she could refine we could refine you could refine they could refine
Form mit V-ing
I could be refining you could be refining she could be refining we could be refining you could be refining they could be refining
Perfekt
I could have refined you could have refined she could have refined we could have refined you could have refined they could have refined
Perfekt mit V-ing
I could have been refining you could have been refining she could have been refining we could have been refining you could have been refining they could have been refining
Negation
Einfache Form
I couldn't refine you couldn't refine she couldn't refine we couldn't refine you couldn't refine they couldn't refine
Form mit V-ing
I couldn't be refining you couldn't be refining she couldn't be refining we couldn't be refining you couldn't be refining they couldn't be refining
Perfekt
I couldn't have refined you couldn't have refined she couldn't have refined we couldn't have refined you couldn't have refined they couldn't have refined
Perfekt mit V-ing
I couldn't have been refining you couldn't have been refining she couldn't have been refining we couldn't have been refining you couldn't have been refining they couldn't have been refining
Fragende Form
Einfache Form
could I refine? could you refine? could she refine? could we refine? could you refine? could they refine?
Form mit V-ing
could I be refining? could you be refining? could she be refining? could we be refining? could you be refining? could they be refining?
Perfekt
could I have refined? could you have refined? could she have refined? could we have refined? could you have refined? could they have refined?
Perfekt mit V-ing
could I have been refining? could you have been refining? could she have been refining? could we have been refining? could you have been refining? could they have been refining?
Fragende Negation Form
Einfache Form
couldn't I refine? couldn't you refine? couldn't she refine? couldn't we refine? couldn't you refine? couldn't they refine?
Form mit V-ing
couldn't I be refining? couldn't you be refining? couldn't she be refining? couldn't we be refining? couldn't you be refining? couldn't they be refining?
Perfekt
couldn't I have refined? couldn't you have refined? couldn't she have refined? couldn't we have refined? couldn't you have refined? couldn't they have refined?
Perfekt mit V-ing
couldn't I have been refining? couldn't you have been refining? couldn't she have been refining? couldn't we have been refining? couldn't you have been refining? couldn't they have been refining?