English verb conjugation MUST FORTIFY

Regular verb: fortify - fortified - fortified

Affirmation

Simple form

I must fortify
you must fortify
he must fortify
we must fortify
you must fortify
they must fortify

V-ing form

I must be fortifying
you must be fortifying
he must be fortifying
we must be fortifying
you must be fortifying
they must be fortifying

Perfect

I must have fortified
you must have fortified
he must have fortified
we must have fortified
you must have fortified
they must have fortified

V-ing perfect

I must have been fortifying
you must have been fortifying
he must have been fortifying
we must have been fortifying
you must have been fortifying
they must have been fortifying

Negation

Simple form

I mustn't fortify
you mustn't fortify
he mustn't fortify
we mustn't fortify
you mustn't fortify
they mustn't fortify

V-ing form

I mustn't be fortifying
you mustn't be fortifying
he mustn't be fortifying
we mustn't be fortifying
you mustn't be fortifying
they mustn't be fortifying

Perfect

I mustn't have fortified
you mustn't have fortified
he mustn't have fortified
we mustn't have fortified
you mustn't have fortified
they mustn't have fortified

V-ing perfect

I mustn't have been fortifying
you mustn't have been fortifying
he mustn't have been fortifying
we mustn't have been fortifying
you mustn't have been fortifying
they mustn't have been fortifying

Interrogative form

Simple form

must I fortify?
must you fortify?
must he fortify?
must we fortify?
must you fortify?
must they fortify?

V-ing form

must I be fortifying?
must you be fortifying?
must he be fortifying?
must we be fortifying?
must you be fortifying?
must they be fortifying?

Perfect

must I have fortified?
must you have fortified?
must he have fortified?
must we have fortified?
must you have fortified?
must they have fortified?

V-ing perfect

must I have been fortifying?
must you have been fortifying?
must he have been fortifying?
must we have been fortifying?
must you have been fortifying?
must they have been fortifying?

Interro-negative form

Simple form

mustn't I fortify?
mustn't you fortify?
mustn't he fortify?
mustn't we fortify?
mustn't you fortify?
mustn't they fortify?

V-ing form

mustn't I be fortifying?
mustn't you be fortifying?
mustn't he be fortifying?
mustn't we be fortifying?
mustn't you be fortifying?
mustn't they be fortifying?

Perfect

mustn't I have fortified?
mustn't you have fortified?
mustn't he have fortified?
mustn't we have fortified?
mustn't you have fortified?
mustn't they have fortified?

V-ing perfect

mustn't I have been fortifying?
mustn't you have been fortifying?
mustn't he have been fortifying?
mustn't we have been fortifying?
mustn't you have been fortifying?
mustn't they have been fortifying?

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