English verb conjugation MUST SKITTER

Regular verb: skitter - skittered - skittered

Affirmation

Simple form

I must skitter
you must skitter
he must skitter
we must skitter
you must skitter
they must skitter

V-ing form

I must be skittering
you must be skittering
he must be skittering
we must be skittering
you must be skittering
they must be skittering

Perfect

I must have skittered
you must have skittered
he must have skittered
we must have skittered
you must have skittered
they must have skittered

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I skitter?
must you skitter?
must he skitter?
must we skitter?
must you skitter?
must they skitter?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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