I could inform you could inform he could inform we could inform you could inform they could inform
Forma com V-ing
I could be informing you could be informing he could be informing we could be informing you could be informing they could be informing
Perfeito
I could have informed you could have informed he could have informed we could have informed you could have informed they could have informed
Perfeito com V-ing
I could have been informing you could have been informing he could have been informing we could have been informing you could have been informing they could have been informing
Negação
Forma simple
I could not inform you could not inform he could not inform we could not inform you could not inform they could not inform
Forma com V-ing
I could not be informing you could not be informing he could not be informing we could not be informing you could not be informing they could not be informing
Perfeito
I could not have informed you could not have informed he could not have informed we could not have informed you could not have informed they could not have informed
Perfeito com V-ing
I could not have been informing you could not have been informing he could not have been informing we could not have been informing you could not have been informing they could not have been informing
Forma interrogativa
Forma simple
could I inform? could you inform? could he inform? could we inform? could you inform? could they inform?
Forma com V-ing
could I be informing? could you be informing? could he be informing? could we be informing? could you be informing? could they be informing?
Perfeito
could I have informed? could you have informed? could he have informed? could we have informed? could you have informed? could they have informed?
Perfeito com V-ing
could I have been informing? could you have been informing? could he have been informing? could we have been informing? could you have been informing? could they have been informing?
Forma interro-Negação
Forma simple
could I not inform? could you not inform? could he not inform? could we not inform? could you not inform? could they not inform?
Forma com V-ing
could I not be informing? could you not be informing? could he not be informing? could we not be informing? could you not be informing? could they not be informing?
Perfeito
could I not have informed? could you not have informed? could he not have informed? could we not have informed? could you not have informed? could they not have informed?
Perfeito com V-ing
could I not have been informing? could you not have been informing? could he not have been informing? could we not have been informing? could you not have been informing? could they not have been informing?