I could gauge you could gauge she could gauge we could gauge you could gauge they could gauge
V-ing form
I could be gauging you could be gauging she could be gauging we could be gauging you could be gauging they could be gauging
Perfect
I could have gauged you could have gauged she could have gauged we could have gauged you could have gauged they could have gauged
V-ing perfect
I could have been gauging you could have been gauging she could have been gauging we could have been gauging you could have been gauging they could have been gauging
Negation
Simple form
I could not gauge you could not gauge she could not gauge we could not gauge you could not gauge they could not gauge
V-ing form
I could not be gauging you could not be gauging she could not be gauging we could not be gauging you could not be gauging they could not be gauging
Perfect
I could not have gauged you could not have gauged she could not have gauged we could not have gauged you could not have gauged they could not have gauged
V-ing perfect
I could not have been gauging you could not have been gauging she could not have been gauging we could not have been gauging you could not have been gauging they could not have been gauging
Interrogative form
Simple form
could I gauge? could you gauge? could she gauge? could we gauge? could you gauge? could they gauge?
V-ing form
could I be gauging? could you be gauging? could she be gauging? could we be gauging? could you be gauging? could they be gauging?
Perfect
could I have gauged? could you have gauged? could she have gauged? could we have gauged? could you have gauged? could they have gauged?
V-ing perfect
could I have been gauging? could you have been gauging? could she have been gauging? could we have been gauging? could you have been gauging? could they have been gauging?
Interro-negative form
Simple form
could I not gauge? could you not gauge? could she not gauge? could we not gauge? could you not gauge? could they not gauge?
V-ing form
could I not be gauging? could you not be gauging? could she not be gauging? could we not be gauging? could you not be gauging? could they not be gauging?
Perfect
could I not have gauged? could you not have gauged? could she not have gauged? could we not have gauged? could you not have gauged? could they not have gauged?
V-ing perfect
could I not have been gauging? could you not have been gauging? could she not have been gauging? could we not have been gauging? could you not have been gauging? could they not have been gauging?