English verb conjugation MUST DEMUR

Regular verb: demur - demurred - demurred

Affirmation

Simple form

I must demur
you must demur
he must demur
we must demur
you must demur
they must demur

V-ing form

I must be demurring
you must be demurring
he must be demurring
we must be demurring
you must be demurring
they must be demurring

Perfect

I must have demurred
you must have demurred
he must have demurred
we must have demurred
you must have demurred
they must have demurred

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I demur?
must you demur?
must he demur?
must we demur?
must you demur?
must they demur?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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