English verb conjugation MUST SINK

Irregular verb: sink - sank, sunk - sunk

Affirmation

Simple form

I must sink
you must sink
he must sink
we must sink
you must sink
they must sink

V-ing form

I must be sinking
you must be sinking
he must be sinking
we must be sinking
you must be sinking
they must be sinking

Perfect

I must have sunk
you must have sunk
he must have sunk
we must have sunk
you must have sunk
they must have sunk

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I sink?
must you sink?
must he sink?
must we sink?
must you sink?
must they sink?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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