English verb conjugation
COULD UNLIMBER

Regular verb: unlimber - unlimbered - unlimbered

Affirmation

Simple form	V-ing form
I could unlimber you could unlimber she could unlimber we could unlimber you could unlimber they could unlimber	I could be unlimbering you could be unlimbering she could be unlimbering we could be unlimbering you could be unlimbering they could be unlimbering
Perfect	V-ing perfect
I could have unlimbered you could have unlimbered she could have unlimbered we could have unlimbered you could have unlimbered they could have unlimbered	I could have been unlimbering you could have been unlimbering she could have been unlimbering we could have been unlimbering you could have been unlimbering they could have been unlimbering

Negation

Simple form	V-ing form
I could not unlimber you could not unlimber she could not unlimber we could not unlimber you could not unlimber they could not unlimber	I could not be unlimbering you could not be unlimbering she could not be unlimbering we could not be unlimbering you could not be unlimbering they could not be unlimbering
Perfect	V-ing perfect
I could not have unlimbered you could not have unlimbered she could not have unlimbered we could not have unlimbered you could not have unlimbered they could not have unlimbered	I could not have been unlimbering you could not have been unlimbering she could not have been unlimbering we could not have been unlimbering you could not have been unlimbering they could not have been unlimbering

Interrogative form

Simple form	V-ing form
could I unlimber? could you unlimber? could she unlimber? could we unlimber? could you unlimber? could they unlimber?	could I be unlimbering? could you be unlimbering? could she be unlimbering? could we be unlimbering? could you be unlimbering? could they be unlimbering?
Perfect	V-ing perfect
could I have unlimbered? could you have unlimbered? could she have unlimbered? could we have unlimbered? could you have unlimbered? could they have unlimbered?	could I have been unlimbering? could you have been unlimbering? could she have been unlimbering? could we have been unlimbering? could you have been unlimbering? could they have been unlimbering?

Interro-negative form

Simple form	V-ing form
could I not unlimber? could you not unlimber? could she not unlimber? could we not unlimber? could you not unlimber? could they not unlimber?	could I not be unlimbering? could you not be unlimbering? could she not be unlimbering? could we not be unlimbering? could you not be unlimbering? could they not be unlimbering?
Perfect	V-ing perfect
could I not have unlimbered? could you not have unlimbered? could she not have unlimbered? could we not have unlimbered? could you not have unlimbered? could they not have unlimbered?	could I not have been unlimbering? could you not have been unlimbering? could she not have been unlimbering? could we not have been unlimbering? could you not have been unlimbering? could they not have been unlimbering?