English verb conjugation
COULD CUMBER

Regular verb: cumber - cumbered - cumbered

Affirmation

Simple form	V-ing form
I could cumber you could cumber he could cumber we could cumber you could cumber they could cumber	I could be cumbering you could be cumbering he could be cumbering we could be cumbering you could be cumbering they could be cumbering
Perfect	V-ing perfect
I could have cumbered you could have cumbered he could have cumbered we could have cumbered you could have cumbered they could have cumbered	I could have been cumbering you could have been cumbering he could have been cumbering we could have been cumbering you could have been cumbering they could have been cumbering

Negation

Simple form	V-ing form
I could not cumber you could not cumber he could not cumber we could not cumber you could not cumber they could not cumber	I could not be cumbering you could not be cumbering he could not be cumbering we could not be cumbering you could not be cumbering they could not be cumbering
Perfect	V-ing perfect
I could not have cumbered you could not have cumbered he could not have cumbered we could not have cumbered you could not have cumbered they could not have cumbered	I could not have been cumbering you could not have been cumbering he could not have been cumbering we could not have been cumbering you could not have been cumbering they could not have been cumbering

Interrogative form

Simple form	V-ing form
could I cumber? could you cumber? could he cumber? could we cumber? could you cumber? could they cumber?	could I be cumbering? could you be cumbering? could he be cumbering? could we be cumbering? could you be cumbering? could they be cumbering?
Perfect	V-ing perfect
could I have cumbered? could you have cumbered? could he have cumbered? could we have cumbered? could you have cumbered? could they have cumbered?	could I have been cumbering? could you have been cumbering? could he have been cumbering? could we have been cumbering? could you have been cumbering? could they have been cumbering?

Interro-negative form

Simple form	V-ing form
could I not cumber? could you not cumber? could he not cumber? could we not cumber? could you not cumber? could they not cumber?	could I not be cumbering? could you not be cumbering? could he not be cumbering? could we not be cumbering? could you not be cumbering? could they not be cumbering?
Perfect	V-ing perfect
could I not have cumbered? could you not have cumbered? could he not have cumbered? could we not have cumbered? could you not have cumbered? could they not have cumbered?	could I not have been cumbering? could you not have been cumbering? could he not have been cumbering? could we not have been cumbering? could you not have been cumbering? could they not have been cumbering?