English verb conjugation
MUST JEST

Regular verb: jest - jested - jested

Affirmation

Simple form	V-ing form
I must jest you must jest she must jest we must jest you must jest they must jest	I must be jesting you must be jesting she must be jesting we must be jesting you must be jesting they must be jesting
Perfect	V-ing perfect
I must have jested you must have jested she must have jested we must have jested you must have jested they must have jested	I must have been jesting you must have been jesting she must have been jesting we must have been jesting you must have been jesting they must have been jesting

Negation

Simple form	V-ing form
I mustn't jest you mustn't jest she mustn't jest we mustn't jest you mustn't jest they mustn't jest	I mustn't be jesting you mustn't be jesting she mustn't be jesting we mustn't be jesting you mustn't be jesting they mustn't be jesting
Perfect	V-ing perfect
I mustn't have jested you mustn't have jested she mustn't have jested we mustn't have jested you mustn't have jested they mustn't have jested	I mustn't have been jesting you mustn't have been jesting she mustn't have been jesting we mustn't have been jesting you mustn't have been jesting they mustn't have been jesting

Interrogative form

Simple form	V-ing form
must I jest? must you jest? must she jest? must we jest? must you jest? must they jest?	must I be jesting? must you be jesting? must she be jesting? must we be jesting? must you be jesting? must they be jesting?
Perfect	V-ing perfect
must I have jested? must you have jested? must she have jested? must we have jested? must you have jested? must they have jested?	must I have been jesting? must you have been jesting? must she have been jesting? must we have been jesting? must you have been jesting? must they have been jesting?

Interro-negative form

Simple form	V-ing form
mustn't I jest? mustn't you jest? mustn't she jest? mustn't we jest? mustn't you jest? mustn't they jest?	mustn't I be jesting? mustn't you be jesting? mustn't she be jesting? mustn't we be jesting? mustn't you be jesting? mustn't they be jesting?
Perfect	V-ing perfect
mustn't I have jested? mustn't you have jested? mustn't she have jested? mustn't we have jested? mustn't you have jested? mustn't they have jested?	mustn't I have been jesting? mustn't you have been jesting? mustn't she have been jesting? mustn't we have been jesting? mustn't you have been jesting? mustn't they have been jesting?