English verb conjugation MUST LEAPFROG

Regular verb: leapfrog - leapfroged - leapfroged

Affirmation

Simple form

I must leapfrog
you must leapfrog
he must leapfrog
we must leapfrog
you must leapfrog
they must leapfrog

V-ing form

I must be leapfroging
you must be leapfroging
he must be leapfroging
we must be leapfroging
you must be leapfroging
they must be leapfroging

Perfect

I must have leapfroged
you must have leapfroged
he must have leapfroged
we must have leapfroged
you must have leapfroged
they must have leapfroged

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I leapfrog?
must you leapfrog?
must he leapfrog?
must we leapfrog?
must you leapfrog?
must they leapfrog?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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