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