English verb conjugation MUST FLEX

Regular verb: flex - flexed - flexed

Affirmation

Simple form

I must flex
you must flex
he must flex
we must flex
you must flex
they must flex

V-ing form

I must be flexing
you must be flexing
he must be flexing
we must be flexing
you must be flexing
they must be flexing

Perfect

I must have flexed
you must have flexed
he must have flexed
we must have flexed
you must have flexed
they must have flexed

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I flex?
must you flex?
must he flex?
must we flex?
must you flex?
must they flex?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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