English verb conjugation MUST BILLOW

Regular verb: billow - billowed - billowed

Affirmation

Simple form

I must billow
you must billow
he must billow
we must billow
you must billow
they must billow

V-ing form

I must be billowing
you must be billowing
he must be billowing
we must be billowing
you must be billowing
they must be billowing

Perfect

I must have billowed
you must have billowed
he must have billowed
we must have billowed
you must have billowed
they must have billowed

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I billow?
must you billow?
must he billow?
must we billow?
must you billow?
must they billow?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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