English verb conjugation MUST PERCH

Regular verb: perch - perched - perched

Affirmation

Simple form

I must perch
you must perch
he must perch
we must perch
you must perch
they must perch

V-ing form

I must be perching
you must be perching
he must be perching
we must be perching
you must be perching
they must be perching

Perfect

I must have perched
you must have perched
he must have perched
we must have perched
you must have perched
they must have perched

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I perch?
must you perch?
must he perch?
must we perch?
must you perch?
must they perch?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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