English verb conjugation MUST DOFF

Regular verb: doff - doffed - doffed

Affirmation

Simple form

I must doff
you must doff
she must doff
we must doff
you must doff
they must doff

V-ing form

I must be doffing
you must be doffing
she must be doffing
we must be doffing
you must be doffing
they must be doffing

Perfect

I must have doffed
you must have doffed
she must have doffed
we must have doffed
you must have doffed
they must have doffed

V-ing perfect

I must have been doffing
you must have been doffing
she must have been doffing
we must have been doffing
you must have been doffing
they must have been doffing

Negation

Simple form

I mustn't doff
you mustn't doff
she mustn't doff
we mustn't doff
you mustn't doff
they mustn't doff

V-ing form

I mustn't be doffing
you mustn't be doffing
she mustn't be doffing
we mustn't be doffing
you mustn't be doffing
they mustn't be doffing

Perfect

I mustn't have doffed
you mustn't have doffed
she mustn't have doffed
we mustn't have doffed
you mustn't have doffed
they mustn't have doffed

V-ing perfect

I mustn't have been doffing
you mustn't have been doffing
she mustn't have been doffing
we mustn't have been doffing
you mustn't have been doffing
they mustn't have been doffing

Interrogative form

Simple form

must I doff?
must you doff?
must she doff?
must we doff?
must you doff?
must they doff?

V-ing form

must I be doffing?
must you be doffing?
must she be doffing?
must we be doffing?
must you be doffing?
must they be doffing?

Perfect

must I have doffed?
must you have doffed?
must she have doffed?
must we have doffed?
must you have doffed?
must they have doffed?

V-ing perfect

must I have been doffing?
must you have been doffing?
must she have been doffing?
must we have been doffing?
must you have been doffing?
must they have been doffing?

Interro-negative form

Simple form

mustn't I doff?
mustn't you doff?
mustn't she doff?
mustn't we doff?
mustn't you doff?
mustn't they doff?

V-ing form

mustn't I be doffing?
mustn't you be doffing?
mustn't she be doffing?
mustn't we be doffing?
mustn't you be doffing?
mustn't they be doffing?

Perfect

mustn't I have doffed?
mustn't you have doffed?
mustn't she have doffed?
mustn't we have doffed?
mustn't you have doffed?
mustn't they have doffed?

V-ing perfect

mustn't I have been doffing?
mustn't you have been doffing?
mustn't she have been doffing?
mustn't we have been doffing?
mustn't you have been doffing?
mustn't they have been doffing?

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