English verb conjugation MUST FUR

Regular verb: fur - furred - furred

Affirmation

Simple form

I must fur
you must fur
she must fur
we must fur
you must fur
they must fur

V-ing form

I must be furring
you must be furring
she must be furring
we must be furring
you must be furring
they must be furring

Perfect

I must have furred
you must have furred
she 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
she must have been furring
we must have been furring
you must have been furring
they must have been furring

Negation

Simple form

I must not fur
you must not fur
she must not fur
we must not fur
you must not fur
they must not fur

V-ing form

I must not be furring
you must not be furring
she must not be furring
we must not be furring
you must not be furring
they must not be furring

Perfect

I must not have furred
you must not have furred
she must not have furred
we must not have furred
you must not have furred
they must not have furred

V-ing perfect

I must not have been furring
you must not have been furring
she must not have been furring
we must not have been furring
you must not have been furring
they must not have been furring

Interrogative form

Simple form

must I fur?
must you fur?
must she fur?
must we fur?
must you fur?
must they fur?

V-ing form

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

Perfect

must I have furred?
must you have furred?
must she 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 she have been furring?
must we have been furring?
must you have been furring?
must they have been furring?

Interro-negative form

Simple form

must I not fur?
must you not fur?
must she not fur?
must we not fur?
must you not fur?
must they not fur?

V-ing form

must I not be furring?
must you not be furring?
must she not be furring?
must we not be furring?
must you not be furring?
must they not be furring?

Perfect

must I not have furred?
must you not have furred?
must she not have furred?
must we not have furred?
must you not have furred?
must they not have furred?

V-ing perfect

must I not have been furring?
must you not have been furring?
must she not have been furring?
must we not have been furring?
must you not have been furring?
must they not have been furring?

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