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 must not rehearse you must not rehearse he must not rehearse we must not rehearse you must not rehearse they must not rehearse	I must not be rehearsing you must not be rehearsing he must not be rehearsing we must not be rehearsing you must not be rehearsing they must not be rehearsing
Perfect	V-ing perfect
I must not have rehearsed you must not have rehearsed he must not have rehearsed we must not have rehearsed you must not have rehearsed they must not have rehearsed	I must not have been rehearsing you must not have been rehearsing he must not have been rehearsing we must not have been rehearsing you must not have been rehearsing they must not 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
must I not rehearse? must you not rehearse? must he not rehearse? must we not rehearse? must you not rehearse? must they not rehearse?	must I not be rehearsing? must you not be rehearsing? must he not be rehearsing? must we not be rehearsing? must you not be rehearsing? must they not be rehearsing?
Perfect	V-ing perfect
must I not have rehearsed? must you not have rehearsed? must he not have rehearsed? must we not have rehearsed? must you not have rehearsed? must they not have rehearsed?	must I not have been rehearsing? must you not have been rehearsing? must he not have been rehearsing? must we not have been rehearsing? must you not have been rehearsing? must they not have been rehearsing?