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