English verb conjugation MUST TUMBLE

Regular verb: tumble - tumbled - tumbled

Affirmation

Simple form

I must tumble
you must tumble
he must tumble
we must tumble
you must tumble
they must tumble

V-ing form

I must be tumbling
you must be tumbling
he must be tumbling
we must be tumbling
you must be tumbling
they must be tumbling

Perfect

I must have tumbled
you must have tumbled
he must have tumbled
we must have tumbled
you must have tumbled
they must have tumbled

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I tumble?
must you tumble?
must he tumble?
must we tumble?
must you tumble?
must they tumble?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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