English verb conjugation MUST FATHOM

Regular verb: fathom - fathomed - fathomed

Affirmation

Simple form

I must fathom
you must fathom
he must fathom
we must fathom
you must fathom
they must fathom

V-ing form

I must be fathoming
you must be fathoming
he must be fathoming
we must be fathoming
you must be fathoming
they must be fathoming

Perfect

I must have fathomed
you must have fathomed
he must have fathomed
we must have fathomed
you must have fathomed
they must have fathomed

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I fathom?
must you fathom?
must he fathom?
must we fathom?
must you fathom?
must they fathom?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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