English verb conjugation MUST USURP

Regular verb: usurp - usurped - usurped

Affirmation

Simple form

I must usurp
you must usurp
he must usurp
we must usurp
you must usurp
they must usurp

V-ing form

I must be usurping
you must be usurping
he must be usurping
we must be usurping
you must be usurping
they must be usurping

Perfect

I must have usurped
you must have usurped
he must have usurped
we must have usurped
you must have usurped
they must have usurped

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I usurp?
must you usurp?
must he usurp?
must we usurp?
must you usurp?
must they usurp?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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