I could breathe you could breathe she could breathe we could breathe you could breathe they could breathe
Forma con V-ing
I could be breathing you could be breathing she could be breathing we could be breathing you could be breathing they could be breathing
Perfecto
I could have breathed you could have breathed she could have breathed we could have breathed you could have breathed they could have breathed
Perfecto con V-ing
I could have been breathing you could have been breathing she could have been breathing we could have been breathing you could have been breathing they could have been breathing
Negación
Forma simple
I couldn't breathe you couldn't breathe she couldn't breathe we couldn't breathe you couldn't breathe they couldn't breathe
Forma con V-ing
I couldn't be breathing you couldn't be breathing she couldn't be breathing we couldn't be breathing you couldn't be breathing they couldn't be breathing
Perfecto
I couldn't have breathed you couldn't have breathed she couldn't have breathed we couldn't have breathed you couldn't have breathed they couldn't have breathed
Perfecto con V-ing
I couldn't have been breathing you couldn't have been breathing she couldn't have been breathing we couldn't have been breathing you couldn't have been breathing they couldn't have been breathing
Forma interrogativa
Forma simple
could I breathe? could you breathe? could she breathe? could we breathe? could you breathe? could they breathe?
Forma con V-ing
could I be breathing? could you be breathing? could she be breathing? could we be breathing? could you be breathing? could they be breathing?
Perfecto
could I have breathed? could you have breathed? could she have breathed? could we have breathed? could you have breathed? could they have breathed?
Perfecto con V-ing
could I have been breathing? could you have been breathing? could she have been breathing? could we have been breathing? could you have been breathing? could they have been breathing?
Forma interro-negativa
Forma simple
couldn't I breathe? couldn't you breathe? couldn't she breathe? couldn't we breathe? couldn't you breathe? couldn't they breathe?
Forma con V-ing
couldn't I be breathing? couldn't you be breathing? couldn't she be breathing? couldn't we be breathing? couldn't you be breathing? couldn't they be breathing?
Perfecto
couldn't I have breathed? couldn't you have breathed? couldn't she have breathed? couldn't we have breathed? couldn't you have breathed? couldn't they have breathed?
Perfecto con V-ing
couldn't I have been breathing? couldn't you have been breathing? couldn't she have been breathing? couldn't we have been breathing? couldn't you have been breathing? couldn't they have been breathing?