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