English verb conjugation MUST YARN

Regular verb: yarn - yarned - yarned

Affirmation

Simple form

I must yarn
you must yarn
he must yarn
we must yarn
you must yarn
they must yarn

V-ing form

I must be yarning
you must be yarning
he must be yarning
we must be yarning
you must be yarning
they must be yarning

Perfect

I must have yarned
you must have yarned
he must have yarned
we must have yarned
you must have yarned
they must have yarned

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I yarn?
must you yarn?
must he yarn?
must we yarn?
must you yarn?
must they yarn?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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