English verb conjugation MUST TWIN

Regular verb: twin - twinned - twinned

Affirmation

Simple form

I must twin
you must twin
he must twin
we must twin
you must twin
they must twin

V-ing form

I must be twinning
you must be twinning
he must be twinning
we must be twinning
you must be twinning
they must be twinning

Perfect

I must have twinned
you must have twinned
he must have twinned
we must have twinned
you must have twinned
they must have twinned

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I twin?
must you twin?
must he twin?
must we twin?
must you twin?
must they twin?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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