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