English verb conjugation MUST PERDURE

Regular verb: perdure - perdured - perdured

Affirmation

Simple form

I must perdure
you must perdure
she must perdure
we must perdure
you must perdure
they must perdure

V-ing form

I must be perduring
you must be perduring
she must be perduring
we must be perduring
you must be perduring
they must be perduring

Perfect

I must have perdured
you must have perdured
she must have perdured
we must have perdured
you must have perdured
they must have perdured

V-ing perfect

I must have been perduring
you must have been perduring
she must have been perduring
we must have been perduring
you must have been perduring
they must have been perduring

Negation

Simple form

I must not perdure
you must not perdure
she must not perdure
we must not perdure
you must not perdure
they must not perdure

V-ing form

I must not be perduring
you must not be perduring
she must not be perduring
we must not be perduring
you must not be perduring
they must not be perduring

Perfect

I must not have perdured
you must not have perdured
she must not have perdured
we must not have perdured
you must not have perdured
they must not have perdured

V-ing perfect

I must not have been perduring
you must not have been perduring
she must not have been perduring
we must not have been perduring
you must not have been perduring
they must not have been perduring

Interrogative form

Simple form

must I perdure?
must you perdure?
must she perdure?
must we perdure?
must you perdure?
must they perdure?

V-ing form

must I be perduring?
must you be perduring?
must she be perduring?
must we be perduring?
must you be perduring?
must they be perduring?

Perfect

must I have perdured?
must you have perdured?
must she have perdured?
must we have perdured?
must you have perdured?
must they have perdured?

V-ing perfect

must I have been perduring?
must you have been perduring?
must she have been perduring?
must we have been perduring?
must you have been perduring?
must they have been perduring?

Interro-negative form

Simple form

must I not perdure?
must you not perdure?
must she not perdure?
must we not perdure?
must you not perdure?
must they not perdure?

V-ing form

must I not be perduring?
must you not be perduring?
must she not be perduring?
must we not be perduring?
must you not be perduring?
must they not be perduring?

Perfect

must I not have perdured?
must you not have perdured?
must she not have perdured?
must we not have perdured?
must you not have perdured?
must they not have perdured?

V-ing perfect

must I not have been perduring?
must you not have been perduring?
must she not have been perduring?
must we not have been perduring?
must you not have been perduring?
must they not have been perduring?

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