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