English verb conjugation MUST UNTWINE

Regular verb: untwine - untwined - untwined

Affirmation

Simple form

I must untwine
you must untwine
he must untwine
we must untwine
you must untwine
they must untwine

V-ing form

I must be untwining
you must be untwining
he must be untwining
we must be untwining
you must be untwining
they must be untwining

Perfect

I must have untwined
you must have untwined
he must have untwined
we must have untwined
you must have untwined
they must have untwined

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I untwine?
must you untwine?
must he untwine?
must we untwine?
must you untwine?
must they untwine?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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