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 mustn't upsurge you mustn't upsurge he mustn't upsurge we mustn't upsurge you mustn't upsurge they mustn't upsurge	I mustn't be upsurging you mustn't be upsurging he mustn't be upsurging we mustn't be upsurging you mustn't be upsurging they mustn't be upsurging
Perfect	V-ing perfect
I mustn't have upsurged you mustn't have upsurged he mustn't have upsurged we mustn't have upsurged you mustn't have upsurged they mustn't have upsurged	I mustn't have been upsurging you mustn't have been upsurging he mustn't have been upsurging we mustn't have been upsurging you mustn't have been upsurging they mustn't 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
mustn't I upsurge? mustn't you upsurge? mustn't he upsurge? mustn't we upsurge? mustn't you upsurge? mustn't they upsurge?	mustn't I be upsurging? mustn't you be upsurging? mustn't he be upsurging? mustn't we be upsurging? mustn't you be upsurging? mustn't they be upsurging?
Perfect	V-ing perfect
mustn't I have upsurged? mustn't you have upsurged? mustn't he have upsurged? mustn't we have upsurged? mustn't you have upsurged? mustn't they have upsurged?	mustn't I have been upsurging? mustn't you have been upsurging? mustn't he have been upsurging? mustn't we have been upsurging? mustn't you have been upsurging? mustn't they have been upsurging?