must rehearse
Regular verb: rehearse - rehearsed- rehearsed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must rehearse
you must rehearse
he must rehearse
we must rehearse
you must rehearse
they must rehearse 	I must be rehearsing
you must be rehearsing
he must be rehearsing
we must be rehearsing
you must be rehearsing
they must be rehearsing	I must have rehearsed
you must have rehearsed
he must have rehearsed
we must have rehearsed
you must have rehearsed
they must have rehearsed	I must have been rehearsing
you must have been rehearsing
he must have been rehearsing
we must have been rehearsing
you must have been rehearsing
they must have been rehearsing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't rehearse
you mustn't rehearse
he mustn't rehearse
we mustn't rehearse
you mustn't rehearse
they mustn't rehearse 	I mustn't be rehearsing
you mustn't be rehearsing
he mustn't be rehearsing
we mustn't be rehearsing
you mustn't be rehearsing
they mustn't be rehearsing	I mustn't have rehearsed
you mustn't have rehearsed
he mustn't have rehearsed
we mustn't have rehearsed
you mustn't have rehearsed
they mustn't have rehearsed	I mustn't have been rehearsing
you mustn't have been rehearsing
he mustn't have been rehearsing
we mustn't have been rehearsing
you mustn't have been rehearsing
they mustn't have been rehearsing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I rehearse?
must you rehearse?
must he rehearse?
must we rehearse?
must you rehearse?
must they rehearse? 	must I be rehearsing?
must you be rehearsing?
must he be rehearsing?
must we be rehearsing?
must you be rehearsing?
must they be rehearsing? 	must I have rehearsed?
must you have rehearsed?
must he have rehearsed?
must we have rehearsed?
must you have rehearsed?
must they have rehearsed? 	must I have been rehearsing?
must you have been rehearsing?
must he have been rehearsing?
must we have been rehearsing?
must you have been rehearsing?
must they have been rehearsing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I rehearse?
mustn't you rehearse?
mustn't he rehearse?
mustn't we rehearse?
mustn't you rehearse?
mustn't they rehearse? 	mustn't I be rehearsing?
mustn't you be rehearsing?
mustn't he be rehearsing?
mustn't we be rehearsing?
mustn't you be rehearsing?
mustn't they be rehearsing? 	mustn't I have rehearsed?
mustn't you have rehearsed?
mustn't he have rehearsed?
mustn't we have rehearsed?
mustn't you have rehearsed?
mustn't they have rehearsed? 	mustn't I have been rehearsing?
mustn't you have been rehearsing?
mustn't he have been rehearsing?
mustn't we have been rehearsing?
mustn't you have been rehearsing?
mustn't they have been rehearsing?