must breath
Verbo regular: breath - breathed- breathed

, este verbo pode não existir, a conjugação é dada como exemplo.

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
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	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	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not breath
you must not breath
she must not breath
we must not breath
you must not breath
they must not breath 	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	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	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 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
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? 	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? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not breath?
must you not breath?
must she not breath?
must we not breath?
must you not breath?
must they not breath? 	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? 	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? 	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?