I could be you could be she could be we could be you could be they could be
Forma com V-ing
I could be being you could be being she could be being we could be being you could be being they could be being
Perfeito
I could have been you could have been she could have been we could have been you could have been they could have been
Perfeito com V-ing
I could have been being you could have been being she could have been being we could have been being you could have been being they could have been being
Negação
Forma simple
I couldn't be you couldn't be she couldn't be we couldn't be you couldn't be they couldn't be
Forma com V-ing
I couldn't be being you couldn't be being she couldn't be being we couldn't be being you couldn't be being they couldn't be being
Perfeito
I couldn't have been you couldn't have been she couldn't have been we couldn't have been you couldn't have been they couldn't have been
Perfeito com V-ing
I couldn't have been being you couldn't have been being she couldn't have been being we couldn't have been being you couldn't have been being they couldn't have been being
Forma interrogativa
Forma simple
could I be? could you be? could she be? could we be? could you be? could they be?
Forma com V-ing
could I be being? could you be being? could she be being? could we be being? could you be being? could they be being?
Perfeito
could I have been? could you have been? could she have been? could we have been? could you have been? could they have been?
Perfeito com V-ing
could I have been being? could you have been being? could she have been being? could we have been being? could you have been being? could they have been being?
Forma interro-Negação
Forma simple
couldn't I be? couldn't you be? couldn't she be? couldn't we be? couldn't you be? couldn't they be?
Forma com V-ing
couldn't I be being? couldn't you be being? couldn't she be being? couldn't we be being? couldn't you be being? couldn't they be being?
Perfeito
couldn't I have been? couldn't you have been? couldn't she have been? couldn't we have been? couldn't you have been? couldn't they have been?
Perfeito com V-ing
couldn't I have been being? couldn't you have been being? couldn't she have been being? couldn't we have been being? couldn't you have been being? couldn't they have been being?