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