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