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