English verb conjugation MUST SCUBA

Regular verb: scuba - scubaed - scubaed

Affirmation

Simple form

I must scuba
you must scuba
he must scuba
we must scuba
you must scuba
they must scuba

V-ing form

I must be scubaing
you must be scubaing
he must be scubaing
we must be scubaing
you must be scubaing
they must be scubaing

Perfect

I must have scubaed
you must have scubaed
he must have scubaed
we must have scubaed
you must have scubaed
they must have scubaed

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I scuba?
must you scuba?
must he scuba?
must we scuba?
must you scuba?
must they scuba?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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