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