English verb conjugation
MUST REFORTIFY

Regular verb: refortify - refortified - refortified

Affirmation

Simple form	V-ing form
I must refortify you must refortify she must refortify we must refortify you must refortify they must refortify	I must be refortifying you must be refortifying she 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 she 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 she 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 must not refortify you must not refortify she must not refortify we must not refortify you must not refortify they must not refortify	I must not be refortifying you must not be refortifying she must not be refortifying we must not be refortifying you must not be refortifying they must not be refortifying
Perfect	V-ing perfect
I must not have refortified you must not have refortified she must not have refortified we must not have refortified you must not have refortified they must not have refortified	I must not have been refortifying you must not have been refortifying she must not have been refortifying we must not have been refortifying you must not have been refortifying they must not have been refortifying

Interrogative form

Simple form	V-ing form
must I refortify? must you refortify? must she refortify? must we refortify? must you refortify? must they refortify?	must I be refortifying? must you be refortifying? must she 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 she 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 she 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
must I not refortify? must you not refortify? must she not refortify? must we not refortify? must you not refortify? must they not refortify?	must I not be refortifying? must you not be refortifying? must she not be refortifying? must we not be refortifying? must you not be refortifying? must they not be refortifying?
Perfect	V-ing perfect
must I not have refortified? must you not have refortified? must she not have refortified? must we not have refortified? must you not have refortified? must they not have refortified?	must I not have been refortifying? must you not have been refortifying? must she not have been refortifying? must we not have been refortifying? must you not have been refortifying? must they not have been refortifying?