Cuidado, este verbo pode não existir, a conjugação é dada como exemplo.
Afirmação
Forma simple
I must breath you must breath she must breath we must breath you must breath they must breath
Forma com V-ing
I must be breathing you must be breathing she must be breathing we must be breathing you must be breathing they must be breathing
Perfeito
I must have breathed you must have breathed she must have breathed we must have breathed you must have breathed they must have breathed
Perfeito com V-ing
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
Negação
Forma simple
I must not breath you must not breath she must not breath we must not breath you must not breath they must not breath
Forma com V-ing
I must not be breathing you must not be breathing she must not be breathing we must not be breathing you must not be breathing they must not be breathing
Perfeito
I must not have breathed you must not have breathed she must not have breathed we must not have breathed you must not have breathed they must not have breathed
Perfeito com V-ing
I must not have been breathing you must not have been breathing she must not have been breathing we must not have been breathing you must not have been breathing they must not have been breathing
Forma interrogativa
Forma simple
must I breath? must you breath? must she breath? must we breath? must you breath? must they breath?
Forma com V-ing
must I be breathing? must you be breathing? must she be breathing? must we be breathing? must you be breathing? must they be breathing?
Perfeito
must I have breathed? must you have breathed? must she have breathed? must we have breathed? must you have breathed? must they have breathed?
Perfeito com V-ing
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?
Forma interro-Negação
Forma simple
must I not breath? must you not breath? must she not breath? must we not breath? must you not breath? must they not breath?
Forma com V-ing
must I not be breathing? must you not be breathing? must she not be breathing? must we not be breathing? must you not be breathing? must they not be breathing?
Perfeito
must I not have breathed? must you not have breathed? must she not have breathed? must we not have breathed? must you not have breathed? must they not have breathed?
Perfeito com V-ing
must I not have been breathing? must you not have been breathing? must she not have been breathing? must we not have been breathing? must you not have been breathing? must they not have been breathing?