I could owe you could owe she could owe we could owe you could owe they could owe
Forma com V-ing
I could be owing you could be owing she could be owing we could be owing you could be owing they could be owing
Perfeito
I could have owed you could have owed she could have owed we could have owed you could have owed they could have owed
Perfeito com V-ing
I could have been owing you could have been owing she could have been owing we could have been owing you could have been owing they could have been owing
Negação
Forma simple
I couldn't owe you couldn't owe she couldn't owe we couldn't owe you couldn't owe they couldn't owe
Forma com V-ing
I couldn't be owing you couldn't be owing she couldn't be owing we couldn't be owing you couldn't be owing they couldn't be owing
Perfeito
I couldn't have owed you couldn't have owed she couldn't have owed we couldn't have owed you couldn't have owed they couldn't have owed
Perfeito com V-ing
I couldn't have been owing you couldn't have been owing she 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 she owe? could we owe? could you owe? could they owe?
Forma com V-ing
could I be owing? could you be owing? could she be owing? could we be owing? could you be owing? could they be owing?
Perfeito
could I have owed? could you have owed? could she have owed? could we have owed? could you have owed? could they have owed?
Perfeito com V-ing
could I have been owing? could you have been owing? could she have been owing? could we have been owing? could you have been owing? could they have been owing?
Forma interro-Negação
Forma simple
couldn't I owe? couldn't you owe? couldn't she owe? couldn't we owe? couldn't you owe? couldn't they owe?
Forma com V-ing
couldn't I be owing? couldn't you be owing? couldn't she be owing? couldn't we be owing? couldn't you be owing? couldn't they be owing?
Perfeito
couldn't I have owed? couldn't you have owed? couldn't she have owed? couldn't we have owed? couldn't you have owed? couldn't they have owed?
Perfeito com V-ing
couldn't I have been owing? couldn't you have been owing? couldn't she have been owing? couldn't we have been owing? couldn't you have been owing? couldn't they have been owing?