I could convene you could convene he could convene we could convene you could convene they could convene
Forma con V-ing
I could be convening you could be convening he could be convening we could be convening you could be convening they could be convening
Perfecto
I could have convened you could have convened he could have convened we could have convened you could have convened they could have convened
Perfecto con V-ing
I could have been convening you could have been convening he could have been convening we could have been convening you could have been convening they could have been convening
Negación
Forma simple
I could not convene you could not convene he could not convene we could not convene you could not convene they could not convene
Forma con V-ing
I could not be convening you could not be convening he could not be convening we could not be convening you could not be convening they could not be convening
Perfecto
I could not have convened you could not have convened he could not have convened we could not have convened you could not have convened they could not have convened
Perfecto con V-ing
I could not have been convening you could not have been convening he could not have been convening we could not have been convening you could not have been convening they could not have been convening
Forma interrogativa
Forma simple
could I convene? could you convene? could he convene? could we convene? could you convene? could they convene?
Forma con V-ing
could I be convening? could you be convening? could he be convening? could we be convening? could you be convening? could they be convening?
Perfecto
could I have convened? could you have convened? could he have convened? could we have convened? could you have convened? could they have convened?
Perfecto con V-ing
could I have been convening? could you have been convening? could he have been convening? could we have been convening? could you have been convening? could they have been convening?
Forma interro-negativa
Forma simple
could I not convene? could you not convene? could he not convene? could we not convene? could you not convene? could they not convene?
Forma con V-ing
could I not be convening? could you not be convening? could he not be convening? could we not be convening? could you not be convening? could they not be convening?
Perfecto
could I not have convened? could you not have convened? could he not have convened? could we not have convened? could you not have convened? could they not have convened?
Perfecto con V-ing
could I not have been convening? could you not have been convening? could he not have been convening? could we not have been convening? could you not have been convening? could they not have been convening?