English verb conjugation
COULD LIMBER

Regular verb: limber - limbered - limbered

Affirmation

Simple form	V-ing form
I could limber you could limber he could limber we could limber you could limber they could limber	I could be limbering you could be limbering he could be limbering we could be limbering you could be limbering they could be limbering
Perfect	V-ing perfect
I could have limbered you could have limbered he could have limbered we could have limbered you could have limbered they could have limbered	I could have been limbering you could have been limbering he could have been limbering we could have been limbering you could have been limbering they could have been limbering

Negation

Simple form	V-ing form
I couldn't limber you couldn't limber he couldn't limber we couldn't limber you couldn't limber they couldn't limber	I couldn't be limbering you couldn't be limbering he couldn't be limbering we couldn't be limbering you couldn't be limbering they couldn't be limbering
Perfect	V-ing perfect
I couldn't have limbered you couldn't have limbered he couldn't have limbered we couldn't have limbered you couldn't have limbered they couldn't have limbered	I couldn't have been limbering you couldn't have been limbering he couldn't have been limbering we couldn't have been limbering you couldn't have been limbering they couldn't have been limbering

Interrogative form

Simple form	V-ing form
could I limber? could you limber? could he limber? could we limber? could you limber? could they limber?	could I be limbering? could you be limbering? could he be limbering? could we be limbering? could you be limbering? could they be limbering?
Perfect	V-ing perfect
could I have limbered? could you have limbered? could he have limbered? could we have limbered? could you have limbered? could they have limbered?	could I have been limbering? could you have been limbering? could he have been limbering? could we have been limbering? could you have been limbering? could they have been limbering?

Interro-negative form

Simple form	V-ing form
couldn't I limber? couldn't you limber? couldn't he limber? couldn't we limber? couldn't you limber? couldn't they limber?	couldn't I be limbering? couldn't you be limbering? couldn't he be limbering? couldn't we be limbering? couldn't you be limbering? couldn't they be limbering?
Perfect	V-ing perfect
couldn't I have limbered? couldn't you have limbered? couldn't he have limbered? couldn't we have limbered? couldn't you have limbered? couldn't they have limbered?	couldn't I have been limbering? couldn't you have been limbering? couldn't he have been limbering? couldn't we have been limbering? couldn't you have been limbering? couldn't they have been limbering?