must supererogate
Regular verb: supererogate - supererogated- supererogated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must supererogate
you must supererogate
he must supererogate
we must supererogate
you must supererogate
they must supererogate 	I must be supererogating
you must be supererogating
he must be supererogating
we must be supererogating
you must be supererogating
they must be supererogating	I must have supererogated
you must have supererogated
he must have supererogated
we must have supererogated
you must have supererogated
they must have supererogated	I must have been supererogating
you must have been supererogating
he must have been supererogating
we must have been supererogating
you must have been supererogating
they must have been supererogating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not supererogate
you must not supererogate
he must not supererogate
we must not supererogate
you must not supererogate
they must not supererogate 	I must not be supererogating
you must not be supererogating
he must not be supererogating
we must not be supererogating
you must not be supererogating
they must not be supererogating	I must not have supererogated
you must not have supererogated
he must not have supererogated
we must not have supererogated
you must not have supererogated
they must not have supererogated	I must not have been supererogating
you must not have been supererogating
he must not have been supererogating
we must not have been supererogating
you must not have been supererogating
they must not have been supererogating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I supererogate?
must you supererogate?
must he supererogate?
must we supererogate?
must you supererogate?
must they supererogate? 	must I be supererogating?
must you be supererogating?
must he be supererogating?
must we be supererogating?
must you be supererogating?
must they be supererogating? 	must I have supererogated?
must you have supererogated?
must he have supererogated?
must we have supererogated?
must you have supererogated?
must they have supererogated? 	must I have been supererogating?
must you have been supererogating?
must he have been supererogating?
must we have been supererogating?
must you have been supererogating?
must they have been supererogating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not supererogate?
must you not supererogate?
must he not supererogate?
must we not supererogate?
must you not supererogate?
must they not supererogate? 	must I not be supererogating?
must you not be supererogating?
must he not be supererogating?
must we not be supererogating?
must you not be supererogating?
must they not be supererogating? 	must I not have supererogated?
must you not have supererogated?
must he not have supererogated?
must we not have supererogated?
must you not have supererogated?
must they not have supererogated? 	must I not have been supererogating?
must you not have been supererogating?
must he not have been supererogating?
must we not have been supererogating?
must you not have been supererogating?
must they not have been supererogating?