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