English verb conjugation
MUST VAULT

Regular verb: vault - vaulted - vaulted

Affirmation

Simple form	V-ing form
I must vault you must vault he must vault we must vault you must vault they must vault	I must be vaulting you must be vaulting he must be vaulting we must be vaulting you must be vaulting they must be vaulting
Perfect	V-ing perfect
I must have vaulted you must have vaulted he must have vaulted we must have vaulted you must have vaulted they must have vaulted	I must have been vaulting you must have been vaulting he must have been vaulting we must have been vaulting you must have been vaulting they must have been vaulting

Negation

Simple form	V-ing form
I must not vault you must not vault he must not vault we must not vault you must not vault they must not vault	I must not be vaulting you must not be vaulting he must not be vaulting we must not be vaulting you must not be vaulting they must not be vaulting
Perfect	V-ing perfect
I must not have vaulted you must not have vaulted he must not have vaulted we must not have vaulted you must not have vaulted they must not have vaulted	I must not have been vaulting you must not have been vaulting he must not have been vaulting we must not have been vaulting you must not have been vaulting they must not have been vaulting

Interrogative form

Simple form	V-ing form
must I vault? must you vault? must he vault? must we vault? must you vault? must they vault?	must I be vaulting? must you be vaulting? must he be vaulting? must we be vaulting? must you be vaulting? must they be vaulting?
Perfect	V-ing perfect
must I have vaulted? must you have vaulted? must he have vaulted? must we have vaulted? must you have vaulted? must they have vaulted?	must I have been vaulting? must you have been vaulting? must he have been vaulting? must we have been vaulting? must you have been vaulting? must they have been vaulting?

Interro-negative form

Simple form	V-ing form
must I not vault? must you not vault? must he not vault? must we not vault? must you not vault? must they not vault?	must I not be vaulting? must you not be vaulting? must he not be vaulting? must we not be vaulting? must you not be vaulting? must they not be vaulting?
Perfect	V-ing perfect
must I not have vaulted? must you not have vaulted? must he not have vaulted? must we not have vaulted? must you not have vaulted? must they not have vaulted?	must I not have been vaulting? must you not have been vaulting? must he not have been vaulting? must we not have been vaulting? must you not have been vaulting? must they not have been vaulting?