English verb conjugation
MUST UPSURGE

Regular verb: upsurge - upsurged - upsurged

Affirmation

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

Negation

Simple form	V-ing form
I must not upsurge you must not upsurge he must not upsurge we must not upsurge you must not upsurge they must not upsurge	I must not be upsurging you must not be upsurging he must not be upsurging we must not be upsurging you must not be upsurging they must not be upsurging
Perfect	V-ing perfect
I must not have upsurged you must not have upsurged he must not have upsurged we must not have upsurged you must not have upsurged they must not have upsurged	I must not have been upsurging you must not have been upsurging he must not have been upsurging we must not have been upsurging you must not have been upsurging they must not have been upsurging

Interrogative form

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

Interro-negative form

Simple form	V-ing form
must I not upsurge? must you not upsurge? must he not upsurge? must we not upsurge? must you not upsurge? must they not upsurge?	must I not be upsurging? must you not be upsurging? must he not be upsurging? must we not be upsurging? must you not be upsurging? must they not be upsurging?
Perfect	V-ing perfect
must I not have upsurged? must you not have upsurged? must he not have upsurged? must we not have upsurged? must you not have upsurged? must they not have upsurged?	must I not have been upsurging? must you not have been upsurging? must he not have been upsurging? must we not have been upsurging? must you not have been upsurging? must they not have been upsurging?