English verb conjugation
COULD UPSURGE

Regular verb: upsurge - upsurged - upsurged

Affirmation

Simple form	V-ing form
I could upsurge you could upsurge she could upsurge we could upsurge you could upsurge they could upsurge	I could be upsurging you could be upsurging she could be upsurging we could be upsurging you could be upsurging they could be upsurging
Perfect	V-ing perfect
I could have upsurged you could have upsurged she could have upsurged we could have upsurged you could have upsurged they could have upsurged	I could have been upsurging you could have been upsurging she could have been upsurging we could have been upsurging you could have been upsurging they could have been upsurging

Negation

Simple form	V-ing form
I couldn't upsurge you couldn't upsurge she couldn't upsurge we couldn't upsurge you couldn't upsurge they couldn't upsurge	I couldn't be upsurging you couldn't be upsurging she couldn't be upsurging we couldn't be upsurging you couldn't be upsurging they couldn't be upsurging
Perfect	V-ing perfect
I couldn't have upsurged you couldn't have upsurged she couldn't have upsurged we couldn't have upsurged you couldn't have upsurged they couldn't have upsurged	I couldn't have been upsurging you couldn't have been upsurging she couldn't have been upsurging we couldn't have been upsurging you couldn't have been upsurging they couldn't have been upsurging

Interrogative form

Simple form	V-ing form
could I upsurge? could you upsurge? could she upsurge? could we upsurge? could you upsurge? could they upsurge?	could I be upsurging? could you be upsurging? could she be upsurging? could we be upsurging? could you be upsurging? could they be upsurging?
Perfect	V-ing perfect
could I have upsurged? could you have upsurged? could she have upsurged? could we have upsurged? could you have upsurged? could they have upsurged?	could I have been upsurging? could you have been upsurging? could she have been upsurging? could we have been upsurging? could you have been upsurging? could they have been upsurging?

Interro-negative form

Simple form	V-ing form
couldn't I upsurge? couldn't you upsurge? couldn't she upsurge? couldn't we upsurge? couldn't you upsurge? couldn't they upsurge?	couldn't I be upsurging? couldn't you be upsurging? couldn't she be upsurging? couldn't we be upsurging? couldn't you be upsurging? couldn't they be upsurging?
Perfect	V-ing perfect
couldn't I have upsurged? couldn't you have upsurged? couldn't she have upsurged? couldn't we have upsurged? couldn't you have upsurged? couldn't they have upsurged?	couldn't I have been upsurging? couldn't you have been upsurging? couldn't she have been upsurging? couldn't we have been upsurging? couldn't you have been upsurging? couldn't they have been upsurging?