English verb conjugation
MUST VOW

Regular verb: vow - vowed - vowed

Affirmation

Simple form	V-ing form
I must vow you must vow he must vow we must vow you must vow they must vow	I must be vowing you must be vowing he must be vowing we must be vowing you must be vowing they must be vowing
Perfect	V-ing perfect
I must have vowed you must have vowed he must have vowed we must have vowed you must have vowed they must have vowed	I must have been vowing you must have been vowing he must have been vowing we must have been vowing you must have been vowing they must have been vowing

Negation

Simple form	V-ing form
I must not vow you must not vow he must not vow we must not vow you must not vow they must not vow	I must not be vowing you must not be vowing he must not be vowing we must not be vowing you must not be vowing they must not be vowing
Perfect	V-ing perfect
I must not have vowed you must not have vowed he must not have vowed we must not have vowed you must not have vowed they must not have vowed	I must not have been vowing you must not have been vowing he must not have been vowing we must not have been vowing you must not have been vowing they must not have been vowing

Interrogative form

Simple form	V-ing form
must I vow? must you vow? must he vow? must we vow? must you vow? must they vow?	must I be vowing? must you be vowing? must he be vowing? must we be vowing? must you be vowing? must they be vowing?
Perfect	V-ing perfect
must I have vowed? must you have vowed? must he have vowed? must we have vowed? must you have vowed? must they have vowed?	must I have been vowing? must you have been vowing? must he have been vowing? must we have been vowing? must you have been vowing? must they have been vowing?

Interro-negative form

Simple form	V-ing form
must I not vow? must you not vow? must he not vow? must we not vow? must you not vow? must they not vow?	must I not be vowing? must you not be vowing? must he not be vowing? must we not be vowing? must you not be vowing? must they not be vowing?
Perfect	V-ing perfect
must I not have vowed? must you not have vowed? must he not have vowed? must we not have vowed? must you not have vowed? must they not have vowed?	must I not have been vowing? must you not have been vowing? must he not have been vowing? must we not have been vowing? must you not have been vowing? must they not have been vowing?