English verb conjugation MUST BREATHE

Regular verb: breathe - breathed - breathed

Affirmation

Simple form

I must breathe
you must breathe
he must breathe
we must breathe
you must breathe
they must breathe

V-ing form

I must be breathing
you must be breathing
he must be breathing
we must be breathing
you must be breathing
they must be breathing

Perfect

I must have breathed
you must have breathed
he must have breathed
we must have breathed
you must have breathed
they must have breathed

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I breathe?
must you breathe?
must he breathe?
must we breathe?
must you breathe?
must they breathe?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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