English verb conjugation
COULD CLAMBER

Regular verb: clamber - clambered - clambered

Affirmation

Simple form	V-ing form
I could clamber you could clamber he could clamber we could clamber you could clamber they could clamber	I could be clambering you could be clambering he could be clambering we could be clambering you could be clambering they could be clambering
Perfect	V-ing perfect
I could have clambered you could have clambered he could have clambered we could have clambered you could have clambered they could have clambered	I could have been clambering you could have been clambering he could have been clambering we could have been clambering you could have been clambering they could have been clambering

Negation

Simple form	V-ing form
I could not clamber you could not clamber he could not clamber we could not clamber you could not clamber they could not clamber	I could not be clambering you could not be clambering he could not be clambering we could not be clambering you could not be clambering they could not be clambering
Perfect	V-ing perfect
I could not have clambered you could not have clambered he could not have clambered we could not have clambered you could not have clambered they could not have clambered	I could not have been clambering you could not have been clambering he could not have been clambering we could not have been clambering you could not have been clambering they could not have been clambering

Interrogative form

Simple form	V-ing form
could I clamber? could you clamber? could he clamber? could we clamber? could you clamber? could they clamber?	could I be clambering? could you be clambering? could he be clambering? could we be clambering? could you be clambering? could they be clambering?
Perfect	V-ing perfect
could I have clambered? could you have clambered? could he have clambered? could we have clambered? could you have clambered? could they have clambered?	could I have been clambering? could you have been clambering? could he have been clambering? could we have been clambering? could you have been clambering? could they have been clambering?

Interro-negative form

Simple form	V-ing form
could I not clamber? could you not clamber? could he not clamber? could we not clamber? could you not clamber? could they not clamber?	could I not be clambering? could you not be clambering? could he not be clambering? could we not be clambering? could you not be clambering? could they not be clambering?
Perfect	V-ing perfect
could I not have clambered? could you not have clambered? could he not have clambered? could we not have clambered? could you not have clambered? could they not have clambered?	could I not have been clambering? could you not have been clambering? could he not have been clambering? could we not have been clambering? could you not have been clambering? could they not have been clambering?