English verb conjugation MUST SWITCHBACK

Regular verb: switchback - switchbacked - switchbacked

Affirmation

Simple form

I must switchback
you must switchback
he must switchback
we must switchback
you must switchback
they must switchback

V-ing form

I must be switchbacking
you must be switchbacking
he must be switchbacking
we must be switchbacking
you must be switchbacking
they must be switchbacking

Perfect

I must have switchbacked
you must have switchbacked
he must have switchbacked
we must have switchbacked
you must have switchbacked
they must have switchbacked

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I switchback?
must you switchback?
must he switchback?
must we switchback?
must you switchback?
must they switchback?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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