I could opt you could opt he could opt we could opt you could opt they could opt
Forma con V-ing
I could be opting you could be opting he could be opting we could be opting you could be opting they could be opting
Perfecto
I could have opted you could have opted he could have opted we could have opted you could have opted they could have opted
Perfecto con V-ing
I could have been opting you could have been opting he could have been opting we could have been opting you could have been opting they could have been opting
Negación
Forma simple
I couldn't opt you couldn't opt he couldn't opt we couldn't opt you couldn't opt they couldn't opt
Forma con V-ing
I couldn't be opting you couldn't be opting he couldn't be opting we couldn't be opting you couldn't be opting they couldn't be opting
Perfecto
I couldn't have opted you couldn't have opted he couldn't have opted we couldn't have opted you couldn't have opted they couldn't have opted
Perfecto con V-ing
I couldn't have been opting you couldn't have been opting he couldn't have been opting we couldn't have been opting you couldn't have been opting they couldn't have been opting
Forma interrogativa
Forma simple
could I opt? could you opt? could he opt? could we opt? could you opt? could they opt?
Forma con V-ing
could I be opting? could you be opting? could he be opting? could we be opting? could you be opting? could they be opting?
Perfecto
could I have opted? could you have opted? could he have opted? could we have opted? could you have opted? could they have opted?
Perfecto con V-ing
could I have been opting? could you have been opting? could he have been opting? could we have been opting? could you have been opting? could they have been opting?
Forma interro-negativa
Forma simple
couldn't I opt? couldn't you opt? couldn't he opt? couldn't we opt? couldn't you opt? couldn't they opt?
Forma con V-ing
couldn't I be opting? couldn't you be opting? couldn't he be opting? couldn't we be opting? couldn't you be opting? couldn't they be opting?
Perfecto
couldn't I have opted? couldn't you have opted? couldn't he have opted? couldn't we have opted? couldn't you have opted? couldn't they have opted?
Perfecto con V-ing
couldn't I have been opting? couldn't you have been opting? couldn't he have been opting? couldn't we have been opting? couldn't you have been opting? couldn't they have been opting?