English verb conjugation MUST SKIM

Regular verb: skim - skimmed - skimmed

Affirmation

Simple form

I must skim
you must skim
he must skim
we must skim
you must skim
they must skim

V-ing form

I must be skimming
you must be skimming
he must be skimming
we must be skimming
you must be skimming
they must be skimming

Perfect

I must have skimmed
you must have skimmed
he must have skimmed
we must have skimmed
you must have skimmed
they must have skimmed

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I skim?
must you skim?
must he skim?
must we skim?
must you skim?
must they skim?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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