English verb conjugation MUST PERISH

Regular verb: perish - perished - perished

Affirmation

Simple form

I must perish
you must perish
she must perish
we must perish
you must perish
they must perish

V-ing form

I must be perishing
you must be perishing
she must be perishing
we must be perishing
you must be perishing
they must be perishing

Perfect

I must have perished
you must have perished
she must have perished
we must have perished
you must have perished
they must have perished

V-ing perfect

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

Negation

Simple form

I mustn't perish
you mustn't perish
she mustn't perish
we mustn't perish
you mustn't perish
they mustn't perish

V-ing form

I mustn't be perishing
you mustn't be perishing
she mustn't be perishing
we mustn't be perishing
you mustn't be perishing
they mustn't be perishing

Perfect

I mustn't have perished
you mustn't have perished
she mustn't have perished
we mustn't have perished
you mustn't have perished
they mustn't have perished

V-ing perfect

I mustn't have been perishing
you mustn't have been perishing
she mustn't have been perishing
we mustn't have been perishing
you mustn't have been perishing
they mustn't have been perishing

Interrogative form

Simple form

must I perish?
must you perish?
must she perish?
must we perish?
must you perish?
must they perish?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

mustn't I perish?
mustn't you perish?
mustn't she perish?
mustn't we perish?
mustn't you perish?
mustn't they perish?

V-ing form

mustn't I be perishing?
mustn't you be perishing?
mustn't she be perishing?
mustn't we be perishing?
mustn't you be perishing?
mustn't they be perishing?

Perfect

mustn't I have perished?
mustn't you have perished?
mustn't she have perished?
mustn't we have perished?
mustn't you have perished?
mustn't they have perished?

V-ing perfect

mustn't I have been perishing?
mustn't you have been perishing?
mustn't she have been perishing?
mustn't we have been perishing?
mustn't you have been perishing?
mustn't they have been perishing?

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