English verb conjugation
COULD GAUGE

Regular verb: gauge - gauged - gauged

Affirmation

Simple form	V-ing form
I could gauge you could gauge he could gauge we could gauge you could gauge they could gauge	I could be gauging you could be gauging he could be gauging we could be gauging you could be gauging they could be gauging
Perfect	V-ing perfect
I could have gauged you could have gauged he could have gauged we could have gauged you could have gauged they could have gauged	I could have been gauging you could have been gauging he could have been gauging we could have been gauging you could have been gauging they could have been gauging

Negation

Simple form	V-ing form
I couldn't gauge you couldn't gauge he couldn't gauge we couldn't gauge you couldn't gauge they couldn't gauge	I couldn't be gauging you couldn't be gauging he couldn't be gauging we couldn't be gauging you couldn't be gauging they couldn't be gauging
Perfect	V-ing perfect
I couldn't have gauged you couldn't have gauged he couldn't have gauged we couldn't have gauged you couldn't have gauged they couldn't have gauged	I couldn't have been gauging you couldn't have been gauging he couldn't have been gauging we couldn't have been gauging you couldn't have been gauging they couldn't have been gauging

Interrogative form

Simple form	V-ing form
could I gauge? could you gauge? could he gauge? could we gauge? could you gauge? could they gauge?	could I be gauging? could you be gauging? could he be gauging? could we be gauging? could you be gauging? could they be gauging?
Perfect	V-ing perfect
could I have gauged? could you have gauged? could he have gauged? could we have gauged? could you have gauged? could they have gauged?	could I have been gauging? could you have been gauging? could he have been gauging? could we have been gauging? could you have been gauging? could they have been gauging?

Interro-negative form

Simple form	V-ing form
couldn't I gauge? couldn't you gauge? couldn't he gauge? couldn't we gauge? couldn't you gauge? couldn't they gauge?	couldn't I be gauging? couldn't you be gauging? couldn't he be gauging? couldn't we be gauging? couldn't you be gauging? couldn't they be gauging?
Perfect	V-ing perfect
couldn't I have gauged? couldn't you have gauged? couldn't he have gauged? couldn't we have gauged? couldn't you have gauged? couldn't they have gauged?	couldn't I have been gauging? couldn't you have been gauging? couldn't he have been gauging? couldn't we have been gauging? couldn't you have been gauging? couldn't they have been gauging?