I could unhitch you could unhitch he could unhitch we could unhitch you could unhitch they could unhitch
Forma con V-ing
I could be unhitching you could be unhitching he could be unhitching we could be unhitching you could be unhitching they could be unhitching
Perfecto
I could have unhitched you could have unhitched he could have unhitched we could have unhitched you could have unhitched they could have unhitched
Perfecto con V-ing
I could have been unhitching you could have been unhitching he could have been unhitching we could have been unhitching you could have been unhitching they could have been unhitching
Negación
Forma simple
I could not unhitch you could not unhitch he could not unhitch we could not unhitch you could not unhitch they could not unhitch
Forma con V-ing
I could not be unhitching you could not be unhitching he could not be unhitching we could not be unhitching you could not be unhitching they could not be unhitching
Perfecto
I could not have unhitched you could not have unhitched he could not have unhitched we could not have unhitched you could not have unhitched they could not have unhitched
Perfecto con V-ing
I could not have been unhitching you could not have been unhitching he could not have been unhitching we could not have been unhitching you could not have been unhitching they could not have been unhitching
Forma interrogativa
Forma simple
could I unhitch? could you unhitch? could he unhitch? could we unhitch? could you unhitch? could they unhitch?
Forma con V-ing
could I be unhitching? could you be unhitching? could he be unhitching? could we be unhitching? could you be unhitching? could they be unhitching?
Perfecto
could I have unhitched? could you have unhitched? could he have unhitched? could we have unhitched? could you have unhitched? could they have unhitched?
Perfecto con V-ing
could I have been unhitching? could you have been unhitching? could he have been unhitching? could we have been unhitching? could you have been unhitching? could they have been unhitching?
Forma interro-negativa
Forma simple
could I not unhitch? could you not unhitch? could he not unhitch? could we not unhitch? could you not unhitch? could they not unhitch?
Forma con V-ing
could I not be unhitching? could you not be unhitching? could he not be unhitching? could we not be unhitching? could you not be unhitching? could they not be unhitching?
Perfecto
could I not have unhitched? could you not have unhitched? could he not have unhitched? could we not have unhitched? could you not have unhitched? could they not have unhitched?
Perfecto con V-ing
could I not have been unhitching? could you not have been unhitching? could he not have been unhitching? could we not have been unhitching? could you not have been unhitching? could they not have been unhitching?