English verb conjugation
MUST VIVIFY

Regular verb: vivify - vivified - vivified

Affirmation

Simple form	V-ing form
I must vivify you must vivify he must vivify we must vivify you must vivify they must vivify	I must be vivifying you must be vivifying he must be vivifying we must be vivifying you must be vivifying they must be vivifying
Perfect	V-ing perfect
I must have vivified you must have vivified he must have vivified we must have vivified you must have vivified they must have vivified	I must have been vivifying you must have been vivifying he must have been vivifying we must have been vivifying you must have been vivifying they must have been vivifying

Negation

Simple form	V-ing form
I mustn't vivify you mustn't vivify he mustn't vivify we mustn't vivify you mustn't vivify they mustn't vivify	I mustn't be vivifying you mustn't be vivifying he mustn't be vivifying we mustn't be vivifying you mustn't be vivifying they mustn't be vivifying
Perfect	V-ing perfect
I mustn't have vivified you mustn't have vivified he mustn't have vivified we mustn't have vivified you mustn't have vivified they mustn't have vivified	I mustn't have been vivifying you mustn't have been vivifying he mustn't have been vivifying we mustn't have been vivifying you mustn't have been vivifying they mustn't have been vivifying

Interrogative form

Simple form	V-ing form
must I vivify? must you vivify? must he vivify? must we vivify? must you vivify? must they vivify?	must I be vivifying? must you be vivifying? must he be vivifying? must we be vivifying? must you be vivifying? must they be vivifying?
Perfect	V-ing perfect
must I have vivified? must you have vivified? must he have vivified? must we have vivified? must you have vivified? must they have vivified?	must I have been vivifying? must you have been vivifying? must he have been vivifying? must we have been vivifying? must you have been vivifying? must they have been vivifying?

Interro-negative form

Simple form	V-ing form
mustn't I vivify? mustn't you vivify? mustn't he vivify? mustn't we vivify? mustn't you vivify? mustn't they vivify?	mustn't I be vivifying? mustn't you be vivifying? mustn't he be vivifying? mustn't we be vivifying? mustn't you be vivifying? mustn't they be vivifying?
Perfect	V-ing perfect
mustn't I have vivified? mustn't you have vivified? mustn't he have vivified? mustn't we have vivified? mustn't you have vivified? mustn't they have vivified?	mustn't I have been vivifying? mustn't you have been vivifying? mustn't he have been vivifying? mustn't we have been vivifying? mustn't you have been vivifying? mustn't they have been vivifying?