English verb conjugation MUST CROSSRUFF

Regular verb: crossruff - crossruffed - crossruffed

Affirmation

Simple form

I must crossruff
you must crossruff
he must crossruff
we must crossruff
you must crossruff
they must crossruff

V-ing form

I must be crossruffing
you must be crossruffing
he must be crossruffing
we must be crossruffing
you must be crossruffing
they must be crossruffing

Perfect

I must have crossruffed
you must have crossruffed
he must have crossruffed
we must have crossruffed
you must have crossruffed
they must have crossruffed

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I crossruff?
must you crossruff?
must he crossruff?
must we crossruff?
must you crossruff?
must they crossruff?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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