must upsurge
Regular verb: upsurge - upsurged- upsurged

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
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? 	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 	Perfect 	V-ing perfect 	
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? 	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?