English verb conjugation
COULD CLABBER

Regular verb: clabber - clabbered - clabbered

Affirmation

Simple form	V-ing form
I could clabber you could clabber he could clabber we could clabber you could clabber they could clabber	I could be clabbering you could be clabbering he could be clabbering we could be clabbering you could be clabbering they could be clabbering
Perfect	V-ing perfect
I could have clabbered you could have clabbered he could have clabbered we could have clabbered you could have clabbered they could have clabbered	I could have been clabbering you could have been clabbering he could have been clabbering we could have been clabbering you could have been clabbering they could have been clabbering

Negation

Simple form	V-ing form
I could not clabber you could not clabber he could not clabber we could not clabber you could not clabber they could not clabber	I could not be clabbering you could not be clabbering he could not be clabbering we could not be clabbering you could not be clabbering they could not be clabbering
Perfect	V-ing perfect
I could not have clabbered you could not have clabbered he could not have clabbered we could not have clabbered you could not have clabbered they could not have clabbered	I could not have been clabbering you could not have been clabbering he could not have been clabbering we could not have been clabbering you could not have been clabbering they could not have been clabbering

Interrogative form

Simple form	V-ing form
could I clabber? could you clabber? could he clabber? could we clabber? could you clabber? could they clabber?	could I be clabbering? could you be clabbering? could he be clabbering? could we be clabbering? could you be clabbering? could they be clabbering?
Perfect	V-ing perfect
could I have clabbered? could you have clabbered? could he have clabbered? could we have clabbered? could you have clabbered? could they have clabbered?	could I have been clabbering? could you have been clabbering? could he have been clabbering? could we have been clabbering? could you have been clabbering? could they have been clabbering?

Interro-negative form

Simple form	V-ing form
could I not clabber? could you not clabber? could he not clabber? could we not clabber? could you not clabber? could they not clabber?	could I not be clabbering? could you not be clabbering? could he not be clabbering? could we not be clabbering? could you not be clabbering? could they not be clabbering?
Perfect	V-ing perfect
could I not have clabbered? could you not have clabbered? could he not have clabbered? could we not have clabbered? could you not have clabbered? could they not have clabbered?	could I not have been clabbering? could you not have been clabbering? could he not have been clabbering? could we not have been clabbering? could you not have been clabbering? could they not have been clabbering?