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