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