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