English verb conjugation
MUST CHASTEN

Regular verb: chasten - chastened - chastened

Affirmation

Simple form	V-ing form
I must chasten you must chasten he must chasten we must chasten you must chasten they must chasten	I must be chastening you must be chastening he must be chastening we must be chastening you must be chastening they must be chastening
Perfect	V-ing perfect
I must have chastened you must have chastened he must have chastened we must have chastened you must have chastened they must have chastened	I must have been chastening you must have been chastening he must have been chastening we must have been chastening you must have been chastening they must have been chastening

Negation

Simple form	V-ing form
I must not chasten you must not chasten he must not chasten we must not chasten you must not chasten they must not chasten	I must not be chastening you must not be chastening he must not be chastening we must not be chastening you must not be chastening they must not be chastening
Perfect	V-ing perfect
I must not have chastened you must not have chastened he must not have chastened we must not have chastened you must not have chastened they must not have chastened	I must not have been chastening you must not have been chastening he must not have been chastening we must not have been chastening you must not have been chastening they must not have been chastening

Interrogative form

Simple form	V-ing form
must I chasten? must you chasten? must he chasten? must we chasten? must you chasten? must they chasten?	must I be chastening? must you be chastening? must he be chastening? must we be chastening? must you be chastening? must they be chastening?
Perfect	V-ing perfect
must I have chastened? must you have chastened? must he have chastened? must we have chastened? must you have chastened? must they have chastened?	must I have been chastening? must you have been chastening? must he have been chastening? must we have been chastening? must you have been chastening? must they have been chastening?

Interro-negative form

Simple form	V-ing form
must I not chasten? must you not chasten? must he not chasten? must we not chasten? must you not chasten? must they not chasten?	must I not be chastening? must you not be chastening? must he not be chastening? must we not be chastening? must you not be chastening? must they not be chastening?
Perfect	V-ing perfect
must I not have chastened? must you not have chastened? must he not have chastened? must we not have chastened? must you not have chastened? must they not have chastened?	must I not have been chastening? must you not have been chastening? must he not have been chastening? must we not have been chastening? must you not have been chastening? must they not have been chastening?