I could conserve you could conserve he could conserve we could conserve you could conserve they could conserve
Forma com V-ing
I could be conserving you could be conserving he could be conserving we could be conserving you could be conserving they could be conserving
Perfeito
I could have conserved you could have conserved he could have conserved we could have conserved you could have conserved they could have conserved
Perfeito com V-ing
I could have been conserving you could have been conserving he could have been conserving we could have been conserving you could have been conserving they could have been conserving
Negação
Forma simple
I could not conserve you could not conserve he could not conserve we could not conserve you could not conserve they could not conserve
Forma com V-ing
I could not be conserving you could not be conserving he could not be conserving we could not be conserving you could not be conserving they could not be conserving
Perfeito
I could not have conserved you could not have conserved he could not have conserved we could not have conserved you could not have conserved they could not have conserved
Perfeito com V-ing
I could not have been conserving you could not have been conserving he could not have been conserving we could not have been conserving you could not have been conserving they could not have been conserving
Forma interrogativa
Forma simple
could I conserve? could you conserve? could he conserve? could we conserve? could you conserve? could they conserve?
Forma com V-ing
could I be conserving? could you be conserving? could he be conserving? could we be conserving? could you be conserving? could they be conserving?
Perfeito
could I have conserved? could you have conserved? could he have conserved? could we have conserved? could you have conserved? could they have conserved?
Perfeito com V-ing
could I have been conserving? could you have been conserving? could he have been conserving? could we have been conserving? could you have been conserving? could they have been conserving?
Forma interro-Negação
Forma simple
could I not conserve? could you not conserve? could he not conserve? could we not conserve? could you not conserve? could they not conserve?
Forma com V-ing
could I not be conserving? could you not be conserving? could he not be conserving? could we not be conserving? could you not be conserving? could they not be conserving?
Perfeito
could I not have conserved? could you not have conserved? could he not have conserved? could we not have conserved? could you not have conserved? could they not have conserved?
Perfeito com V-ing
could I not have been conserving? could you not have been conserving? could he not have been conserving? could we not have been conserving? could you not have been conserving? could they not have been conserving?