Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I might breath you might breath he might breath we might breath you might breath they might breath
V-ing form
I might be breathing you might be breathing he might be breathing we might be breathing you might be breathing they might be breathing
Perfect
I might have breathed you might have breathed he might have breathed we might have breathed you might have breathed they might have breathed
V-ing perfect
I might have been breathing you might have been breathing he might have been breathing we might have been breathing you might have been breathing they might have been breathing
Negation
Simple form
I mightn't breath you mightn't breath he mightn't breath we mightn't breath you mightn't breath they mightn't breath
V-ing form
I mightn't be breathing you mightn't be breathing he mightn't be breathing we mightn't be breathing you mightn't be breathing they mightn't be breathing
Perfect
I mightn't have breathed you mightn't have breathed he mightn't have breathed we mightn't have breathed you mightn't have breathed they mightn't have breathed
V-ing perfect
I mightn't have been breathing you mightn't have been breathing he mightn't have been breathing we mightn't have been breathing you mightn't have been breathing they mightn't have been breathing
Interrogative form
Simple form
might I breath? might you breath? might he breath? might we breath? might you breath? might they breath?
V-ing form
might I be breathing? might you be breathing? might he be breathing? might we be breathing? might you be breathing? might they be breathing?
Perfect
might I have breathed? might you have breathed? might he have breathed? might we have breathed? might you have breathed? might they have breathed?
V-ing perfect
might I have been breathing? might you have been breathing? might he have been breathing? might we have been breathing? might you have been breathing? might they have been breathing?
Interro-negative form
Simple form
mightn't I breath? mightn't you breath? mightn't he breath? mightn't we breath? mightn't you breath? mightn't they breath?
V-ing form
mightn't I be breathing? mightn't you be breathing? mightn't he be breathing? mightn't we be breathing? mightn't you be breathing? mightn't they be breathing?
Perfect
mightn't I have breathed? mightn't you have breathed? mightn't he have breathed? mightn't we have breathed? mightn't you have breathed? mightn't they have breathed?
V-ing perfect
mightn't I have been breathing? mightn't you have been breathing? mightn't he have been breathing? mightn't we have been breathing? mightn't you have been breathing? mightn't they have been breathing?