I could drown you could drown he could drown we could drown you could drown they could drown
Forma com V-ing
I could be drowning you could be drowning he could be drowning we could be drowning you could be drowning they could be drowning
Perfeito
I could have drowned you could have drowned he could have drowned we could have drowned you could have drowned they could have drowned
Perfeito com V-ing
I could have been drowning you could have been drowning he could have been drowning we could have been drowning you could have been drowning they could have been drowning
Negação
Forma simple
I could not drown you could not drown he could not drown we could not drown you could not drown they could not drown
Forma com V-ing
I could not be drowning you could not be drowning he could not be drowning we could not be drowning you could not be drowning they could not be drowning
Perfeito
I could not have drowned you could not have drowned he could not have drowned we could not have drowned you could not have drowned they could not have drowned
Perfeito com V-ing
I could not have been drowning you could not have been drowning he could not have been drowning we could not have been drowning you could not have been drowning they could not have been drowning
Forma interrogativa
Forma simple
could I drown? could you drown? could he drown? could we drown? could you drown? could they drown?
Forma com V-ing
could I be drowning? could you be drowning? could he be drowning? could we be drowning? could you be drowning? could they be drowning?
Perfeito
could I have drowned? could you have drowned? could he have drowned? could we have drowned? could you have drowned? could they have drowned?
Perfeito com V-ing
could I have been drowning? could you have been drowning? could he have been drowning? could we have been drowning? could you have been drowning? could they have been drowning?
Forma interro-Negação
Forma simple
could I not drown? could you not drown? could he not drown? could we not drown? could you not drown? could they not drown?
Forma com V-ing
could I not be drowning? could you not be drowning? could he not be drowning? could we not be drowning? could you not be drowning? could they not be drowning?
Perfeito
could I not have drowned? could you not have drowned? could he not have drowned? could we not have drowned? could you not have drowned? could they not have drowned?
Perfeito com V-ing
could I not have been drowning? could you not have been drowning? could he not have been drowning? could we not have been drowning? could you not have been drowning? could they not have been drowning?