English verb conjugation
MUST REHEARSE

Regular verb: rehearse - rehearsed - rehearsed

Affirmation

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