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