English verb conjugation
MUST REFORTIFY

Regular verb: refortify - refortified - refortified

Affirmation

Simple form	V-ing form
I must refortify you must refortify he must refortify we must refortify you must refortify they must refortify	I must be refortifying you must be refortifying he must be refortifying we must be refortifying you must be refortifying they must be refortifying
Perfect	V-ing perfect
I must have refortified you must have refortified he must have refortified we must have refortified you must have refortified they must have refortified	I must have been refortifying you must have been refortifying he must have been refortifying we must have been refortifying you must have been refortifying they must have been refortifying

Negation

Simple form	V-ing form
I mustn't refortify you mustn't refortify he mustn't refortify we mustn't refortify you mustn't refortify they mustn't refortify	I mustn't be refortifying you mustn't be refortifying he mustn't be refortifying we mustn't be refortifying you mustn't be refortifying they mustn't be refortifying
Perfect	V-ing perfect
I mustn't have refortified you mustn't have refortified he mustn't have refortified we mustn't have refortified you mustn't have refortified they mustn't have refortified	I mustn't have been refortifying you mustn't have been refortifying he mustn't have been refortifying we mustn't have been refortifying you mustn't have been refortifying they mustn't have been refortifying

Interrogative form

Simple form	V-ing form
must I refortify? must you refortify? must he refortify? must we refortify? must you refortify? must they refortify?	must I be refortifying? must you be refortifying? must he be refortifying? must we be refortifying? must you be refortifying? must they be refortifying?
Perfect	V-ing perfect
must I have refortified? must you have refortified? must he have refortified? must we have refortified? must you have refortified? must they have refortified?	must I have been refortifying? must you have been refortifying? must he have been refortifying? must we have been refortifying? must you have been refortifying? must they have been refortifying?

Interro-negative form

Simple form	V-ing form
mustn't I refortify? mustn't you refortify? mustn't he refortify? mustn't we refortify? mustn't you refortify? mustn't they refortify?	mustn't I be refortifying? mustn't you be refortifying? mustn't he be refortifying? mustn't we be refortifying? mustn't you be refortifying? mustn't they be refortifying?
Perfect	V-ing perfect
mustn't I have refortified? mustn't you have refortified? mustn't he have refortified? mustn't we have refortified? mustn't you have refortified? mustn't they have refortified?	mustn't I have been refortifying? mustn't you have been refortifying? mustn't he have been refortifying? mustn't we have been refortifying? mustn't you have been refortifying? mustn't they have been refortifying?