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 mustn't chasten you mustn't chasten he mustn't chasten we mustn't chasten you mustn't chasten they mustn't chasten	I mustn't be chastening you mustn't be chastening he mustn't be chastening we mustn't be chastening you mustn't be chastening they mustn't be chastening
Perfect	V-ing perfect
I mustn't have chastened you mustn't have chastened he mustn't have chastened we mustn't have chastened you mustn't have chastened they mustn't have chastened	I mustn't have been chastening you mustn't have been chastening he mustn't have been chastening we mustn't have been chastening you mustn't have been chastening they mustn't 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
mustn't I chasten? mustn't you chasten? mustn't he chasten? mustn't we chasten? mustn't you chasten? mustn't they chasten?	mustn't I be chastening? mustn't you be chastening? mustn't he be chastening? mustn't we be chastening? mustn't you be chastening? mustn't they be chastening?
Perfect	V-ing perfect
mustn't I have chastened? mustn't you have chastened? mustn't he have chastened? mustn't we have chastened? mustn't you have chastened? mustn't they have chastened?	mustn't I have been chastening? mustn't you have been chastening? mustn't he have been chastening? mustn't we have been chastening? mustn't you have been chastening? mustn't they have been chastening?