English verb conjugation MUST SKATEBOARD

Regular verb: skateboard - skateboarded - skateboarded

Affirmation

Simple form

I must skateboard
you must skateboard
he must skateboard
we must skateboard
you must skateboard
they must skateboard

V-ing form

I must be skateboarding
you must be skateboarding
he must be skateboarding
we must be skateboarding
you must be skateboarding
they must be skateboarding

Perfect

I must have skateboarded
you must have skateboarded
he must have skateboarded
we must have skateboarded
you must have skateboarded
they must have skateboarded

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I skateboard?
must you skateboard?
must he skateboard?
must we skateboard?
must you skateboard?
must they skateboard?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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