English verb conjugation MUST SAIL

Regular verb: sail - sailed - sailed

Affirmation

Simple form

I must sail
you must sail
she must sail
we must sail
you must sail
they must sail

V-ing form

I must be sailing
you must be sailing
she must be sailing
we must be sailing
you must be sailing
they must be sailing

Perfect

I must have sailed
you must have sailed
she must have sailed
we must have sailed
you must have sailed
they must have sailed

V-ing perfect

I must have been sailing
you must have been sailing
she must have been sailing
we must have been sailing
you must have been sailing
they must have been sailing

Negation

Simple form

I mustn't sail
you mustn't sail
she mustn't sail
we mustn't sail
you mustn't sail
they mustn't sail

V-ing form

I mustn't be sailing
you mustn't be sailing
she mustn't be sailing
we mustn't be sailing
you mustn't be sailing
they mustn't be sailing

Perfect

I mustn't have sailed
you mustn't have sailed
she mustn't have sailed
we mustn't have sailed
you mustn't have sailed
they mustn't have sailed

V-ing perfect

I mustn't have been sailing
you mustn't have been sailing
she mustn't have been sailing
we mustn't have been sailing
you mustn't have been sailing
they mustn't have been sailing

Interrogative form

Simple form

must I sail?
must you sail?
must she sail?
must we sail?
must you sail?
must they sail?

V-ing form

must I be sailing?
must you be sailing?
must she be sailing?
must we be sailing?
must you be sailing?
must they be sailing?

Perfect

must I have sailed?
must you have sailed?
must she have sailed?
must we have sailed?
must you have sailed?
must they have sailed?

V-ing perfect

must I have been sailing?
must you have been sailing?
must she have been sailing?
must we have been sailing?
must you have been sailing?
must they have been sailing?

Interro-negative form

Simple form

mustn't I sail?
mustn't you sail?
mustn't she sail?
mustn't we sail?
mustn't you sail?
mustn't they sail?

V-ing form

mustn't I be sailing?
mustn't you be sailing?
mustn't she be sailing?
mustn't we be sailing?
mustn't you be sailing?
mustn't they be sailing?

Perfect

mustn't I have sailed?
mustn't you have sailed?
mustn't she have sailed?
mustn't we have sailed?
mustn't you have sailed?
mustn't they have sailed?

V-ing perfect

mustn't I have been sailing?
mustn't you have been sailing?
mustn't she have been sailing?
mustn't we have been sailing?
mustn't you have been sailing?
mustn't they have been sailing?

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