English verb conjugation
MUST BREATH

Regular verb: breath - breathed - breathed

Warning, this verb may not exist. Conjugation is given as example.

Affirmation

Simple form	V-ing form
I must breath you must breath she must breath we must breath you must breath they must breath	I must be breathing you must be breathing she must be breathing we must be breathing you must be breathing they must be breathing
Perfect	V-ing perfect
I must have breathed you must have breathed she must have breathed we must have breathed you must have breathed they must have breathed	I must have been breathing you must have been breathing she must have been breathing we must have been breathing you must have been breathing they must have been breathing

Negation

Simple form	V-ing form
I mustn't breath you mustn't breath she mustn't breath we mustn't breath you mustn't breath they mustn't breath	I mustn't be breathing you mustn't be breathing she mustn't be breathing we mustn't be breathing you mustn't be breathing they mustn't be breathing
Perfect	V-ing perfect
I mustn't have breathed you mustn't have breathed she mustn't have breathed we mustn't have breathed you mustn't have breathed they mustn't have breathed	I mustn't have been breathing you mustn't have been breathing she 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	V-ing form
must I breath? must you breath? must she breath? must we breath? must you breath? must they breath?	must I be breathing? must you be breathing? must she be breathing? must we be breathing? must you be breathing? must they be breathing?
Perfect	V-ing perfect
must I have breathed? must you have breathed? must she have breathed? must we have breathed? must you have breathed? must they have breathed?	must I have been breathing? must you have been breathing? must she have been breathing? must we have been breathing? must you have been breathing? must they have been breathing?

Interro-negative form

Simple form	V-ing form
mustn't I breath? mustn't you breath? mustn't she breath? mustn't we breath? mustn't you breath? mustn't they breath?	mustn't I be breathing? mustn't you be breathing? mustn't she be breathing? mustn't we be breathing? mustn't you be breathing? mustn't they be breathing?
Perfect	V-ing perfect
mustn't I have breathed? mustn't you have breathed? mustn't she have breathed? mustn't we have breathed? mustn't you have breathed? mustn't they have breathed?	mustn't I have been breathing? mustn't you have been breathing? mustn't she have been breathing? mustn't we have been breathing? mustn't you have been breathing? mustn't they have been breathing?