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