I could premise you could premise he could premise we could premise you could premise they could premise
Forma con V-ing
I could be premising you could be premising he could be premising we could be premising you could be premising they could be premising
Perfecto
I could have premised you could have premised he could have premised we could have premised you could have premised they could have premised
Perfecto con V-ing
I could have been premising you could have been premising he could have been premising we could have been premising you could have been premising they could have been premising
Negación
Forma simple
I could not premise you could not premise he could not premise we could not premise you could not premise they could not premise
Forma con V-ing
I could not be premising you could not be premising he could not be premising we could not be premising you could not be premising they could not be premising
Perfecto
I could not have premised you could not have premised he could not have premised we could not have premised you could not have premised they could not have premised
Perfecto con V-ing
I could not have been premising you could not have been premising he could not have been premising we could not have been premising you could not have been premising they could not have been premising
Forma interrogativa
Forma simple
could I premise? could you premise? could he premise? could we premise? could you premise? could they premise?
Forma con V-ing
could I be premising? could you be premising? could he be premising? could we be premising? could you be premising? could they be premising?
Perfecto
could I have premised? could you have premised? could he have premised? could we have premised? could you have premised? could they have premised?
Perfecto con V-ing
could I have been premising? could you have been premising? could he have been premising? could we have been premising? could you have been premising? could they have been premising?
Forma interro-negativa
Forma simple
could I not premise? could you not premise? could he not premise? could we not premise? could you not premise? could they not premise?
Forma con V-ing
could I not be premising? could you not be premising? could he not be premising? could we not be premising? could you not be premising? could they not be premising?
Perfecto
could I not have premised? could you not have premised? could he not have premised? could we not have premised? could you not have premised? could they not have premised?
Perfecto con V-ing
could I not have been premising? could you not have been premising? could he not have been premising? could we not have been premising? could you not have been premising? could they not have been premising?