must bung
Regular verb: bung - bunged- bunged

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must bung
you must bung
he must bung
we must bung
you must bung
they must bung 	I must be bunging
you must be bunging
he must be bunging
we must be bunging
you must be bunging
they must be bunging	I must have bunged
you must have bunged
he must have bunged
we must have bunged
you must have bunged
they must have bunged	I must have been bunging
you must have been bunging
he must have been bunging
we must have been bunging
you must have been bunging
they must have been bunging	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not bung
you must not bung
he must not bung
we must not bung
you must not bung
they must not bung 	I must not be bunging
you must not be bunging
he must not be bunging
we must not be bunging
you must not be bunging
they must not be bunging	I must not have bunged
you must not have bunged
he must not have bunged
we must not have bunged
you must not have bunged
they must not have bunged	I must not have been bunging
you must not have been bunging
he must not have been bunging
we must not have been bunging
you must not have been bunging
they must not have been bunging	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I bung?
must you bung?
must he bung?
must we bung?
must you bung?
must they bung? 	must I be bunging?
must you be bunging?
must he be bunging?
must we be bunging?
must you be bunging?
must they be bunging? 	must I have bunged?
must you have bunged?
must he have bunged?
must we have bunged?
must you have bunged?
must they have bunged? 	must I have been bunging?
must you have been bunging?
must he have been bunging?
must we have been bunging?
must you have been bunging?
must they have been bunging? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not bung?
must you not bung?
must he not bung?
must we not bung?
must you not bung?
must they not bung? 	must I not be bunging?
must you not be bunging?
must he not be bunging?
must we not be bunging?
must you not be bunging?
must they not be bunging? 	must I not have bunged?
must you not have bunged?
must he not have bunged?
must we not have bunged?
must you not have bunged?
must they not have bunged? 	must I not have been bunging?
must you not have been bunging?
must he not have been bunging?
must we not have been bunging?
must you not have been bunging?
must they not have been bunging?