English verb conjugation MUST CUMBER

Regular verb: cumber - cumbered - cumbered

Affirmation

Simple form

I must cumber
you must cumber
he must cumber
we must cumber
you must cumber
they must cumber

V-ing form

I must be cumbering
you must be cumbering
he must be cumbering
we must be cumbering
you must be cumbering
they must be cumbering

Perfect

I must have cumbered
you must have cumbered
he must have cumbered
we must have cumbered
you must have cumbered
they must have cumbered

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I cumber?
must you cumber?
must he cumber?
must we cumber?
must you cumber?
must they cumber?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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