English verb conjugation MUST FUR

Regular verb: fur - furred - furred

Affirmation

Simple form

I must fur
you must fur
he must fur
we must fur
you must fur
they must fur

V-ing form

I must be furring
you must be furring
he must be furring
we must be furring
you must be furring
they must be furring

Perfect

I must have furred
you must have furred
he must have furred
we must have furred
you must have furred
they must have furred

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I fur?
must you fur?
must he fur?
must we fur?
must you fur?
must they fur?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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