English verb conjugation
MUST HAFT

Regular verb: haft - hafted - hafted

Affirmation

Simple form	V-ing form
I must haft you must haft he must haft we must haft you must haft they must haft	I must be hafting you must be hafting he must be hafting we must be hafting you must be hafting they must be hafting
Perfect	V-ing perfect
I must have hafted you must have hafted he must have hafted we must have hafted you must have hafted they must have hafted	I must have been hafting you must have been hafting he must have been hafting we must have been hafting you must have been hafting they must have been hafting

Negation

Simple form	V-ing form
I must not haft you must not haft he must not haft we must not haft you must not haft they must not haft	I must not be hafting you must not be hafting he must not be hafting we must not be hafting you must not be hafting they must not be hafting
Perfect	V-ing perfect
I must not have hafted you must not have hafted he must not have hafted we must not have hafted you must not have hafted they must not have hafted	I must not have been hafting you must not have been hafting he must not have been hafting we must not have been hafting you must not have been hafting they must not have been hafting

Interrogative form

Simple form	V-ing form
must I haft? must you haft? must he haft? must we haft? must you haft? must they haft?	must I be hafting? must you be hafting? must he be hafting? must we be hafting? must you be hafting? must they be hafting?
Perfect	V-ing perfect
must I have hafted? must you have hafted? must he have hafted? must we have hafted? must you have hafted? must they have hafted?	must I have been hafting? must you have been hafting? must he have been hafting? must we have been hafting? must you have been hafting? must they have been hafting?

Interro-negative form

Simple form	V-ing form
must I not haft? must you not haft? must he not haft? must we not haft? must you not haft? must they not haft?	must I not be hafting? must you not be hafting? must he not be hafting? must we not be hafting? must you not be hafting? must they not be hafting?
Perfect	V-ing perfect
must I not have hafted? must you not have hafted? must he not have hafted? must we not have hafted? must you not have hafted? must they not have hafted?	must I not have been hafting? must you not have been hafting? must he not have been hafting? must we not have been hafting? must you not have been hafting? must they not have been hafting?