English verb conjugation MUST DULL

Regular verb: dull - dulled - dulled

Affirmation

Simple form

I must dull
you must dull
he must dull
we must dull
you must dull
they must dull

V-ing form

I must be dulling
you must be dulling
he must be dulling
we must be dulling
you must be dulling
they must be dulling

Perfect

I must have dulled
you must have dulled
he must have dulled
we must have dulled
you must have dulled
they must have dulled

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I dull?
must you dull?
must he dull?
must we dull?
must you dull?
must they dull?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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