English verb conjugation MUST CREST

Regular verb: crest - crested - crested

Affirmation

Simple form

I must crest
you must crest
he must crest
we must crest
you must crest
they must crest

V-ing form

I must be cresting
you must be cresting
he must be cresting
we must be cresting
you must be cresting
they must be cresting

Perfect

I must have crested
you must have crested
he must have crested
we must have crested
you must have crested
they must have crested

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I crest?
must you crest?
must he crest?
must we crest?
must you crest?
must they crest?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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