English verb conjugation MUST SNOWBALL

Regular verb: snowball - snowballed - snowballed

Affirmation

Simple form

I must snowball
you must snowball
she must snowball
we must snowball
you must snowball
they must snowball

V-ing form

I must be snowballing
you must be snowballing
she must be snowballing
we must be snowballing
you must be snowballing
they must be snowballing

Perfect

I must have snowballed
you must have snowballed
she must have snowballed
we must have snowballed
you must have snowballed
they must have snowballed

V-ing perfect

I must have been snowballing
you must have been snowballing
she must have been snowballing
we must have been snowballing
you must have been snowballing
they must have been snowballing

Negation

Simple form

I mustn't snowball
you mustn't snowball
she mustn't snowball
we mustn't snowball
you mustn't snowball
they mustn't snowball

V-ing form

I mustn't be snowballing
you mustn't be snowballing
she mustn't be snowballing
we mustn't be snowballing
you mustn't be snowballing
they mustn't be snowballing

Perfect

I mustn't have snowballed
you mustn't have snowballed
she mustn't have snowballed
we mustn't have snowballed
you mustn't have snowballed
they mustn't have snowballed

V-ing perfect

I mustn't have been snowballing
you mustn't have been snowballing
she mustn't have been snowballing
we mustn't have been snowballing
you mustn't have been snowballing
they mustn't have been snowballing

Interrogative form

Simple form

must I snowball?
must you snowball?
must she snowball?
must we snowball?
must you snowball?
must they snowball?

V-ing form

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

Perfect

must I have snowballed?
must you have snowballed?
must she have snowballed?
must we have snowballed?
must you have snowballed?
must they have snowballed?

V-ing perfect

must I have been snowballing?
must you have been snowballing?
must she have been snowballing?
must we have been snowballing?
must you have been snowballing?
must they have been snowballing?

Interro-negative form

Simple form

mustn't I snowball?
mustn't you snowball?
mustn't she snowball?
mustn't we snowball?
mustn't you snowball?
mustn't they snowball?

V-ing form

mustn't I be snowballing?
mustn't you be snowballing?
mustn't she be snowballing?
mustn't we be snowballing?
mustn't you be snowballing?
mustn't they be snowballing?

Perfect

mustn't I have snowballed?
mustn't you have snowballed?
mustn't she have snowballed?
mustn't we have snowballed?
mustn't you have snowballed?
mustn't they have snowballed?

V-ing perfect

mustn't I have been snowballing?
mustn't you have been snowballing?
mustn't she have been snowballing?
mustn't we have been snowballing?
mustn't you have been snowballing?
mustn't they have been snowballing?

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