I could decline you could decline he could decline we could decline you could decline they could decline
Forma con V-ing
I could be declining you could be declining he could be declining we could be declining you could be declining they could be declining
Perfecto
I could have declined you could have declined he could have declined we could have declined you could have declined they could have declined
Perfecto con V-ing
I could have been declining you could have been declining he could have been declining we could have been declining you could have been declining they could have been declining
Negación
Forma simple
I could not decline you could not decline he could not decline we could not decline you could not decline they could not decline
Forma con V-ing
I could not be declining you could not be declining he could not be declining we could not be declining you could not be declining they could not be declining
Perfecto
I could not have declined you could not have declined he could not have declined we could not have declined you could not have declined they could not have declined
Perfecto con V-ing
I could not have been declining you could not have been declining he could not have been declining we could not have been declining you could not have been declining they could not have been declining
Forma interrogativa
Forma simple
could I decline? could you decline? could he decline? could we decline? could you decline? could they decline?
Forma con V-ing
could I be declining? could you be declining? could he be declining? could we be declining? could you be declining? could they be declining?
Perfecto
could I have declined? could you have declined? could he have declined? could we have declined? could you have declined? could they have declined?
Perfecto con V-ing
could I have been declining? could you have been declining? could he have been declining? could we have been declining? could you have been declining? could they have been declining?
Forma interro-negativa
Forma simple
could I not decline? could you not decline? could he not decline? could we not decline? could you not decline? could they not decline?
Forma con V-ing
could I not be declining? could you not be declining? could he not be declining? could we not be declining? could you not be declining? could they not be declining?
Perfecto
could I not have declined? could you not have declined? could he not have declined? could we not have declined? could you not have declined? could they not have declined?
Perfecto con V-ing
could I not have been declining? could you not have been declining? could he not have been declining? could we not have been declining? could you not have been declining? could they not have been declining?