English verb conjugation MUST BARB

Regular verb: barb - barbed - barbed

Affirmation

Simple form

I must barb
you must barb
she must barb
we must barb
you must barb
they must barb

V-ing form

I must be barbing
you must be barbing
she must be barbing
we must be barbing
you must be barbing
they must be barbing

Perfect

I must have barbed
you must have barbed
she must have barbed
we must have barbed
you must have barbed
they must have barbed

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I barb?
must you barb?
must she barb?
must we barb?
must you barb?
must they barb?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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