I must leather you must leather he must leather we must leather you must leather they must leather
Forma con V-ing
I must be leathering you must be leathering he must be leathering we must be leathering you must be leathering they must be leathering
Perfetto
I must have leathered you must have leathered he must have leathered we must have leathered you must have leathered they must have leathered
Perfetto con V-ing
I must have been leathering you must have been leathering he must have been leathering we must have been leathering you must have been leathering they must have been leathering
Negazione
Forma semplice
I mustn't leather you mustn't leather he mustn't leather we mustn't leather you mustn't leather they mustn't leather
Forma con V-ing
I mustn't be leathering you mustn't be leathering he mustn't be leathering we mustn't be leathering you mustn't be leathering they mustn't be leathering
Perfetto
I mustn't have leathered you mustn't have leathered he mustn't have leathered we mustn't have leathered you mustn't have leathered they mustn't have leathered
Perfetto con V-ing
I mustn't have been leathering you mustn't have been leathering he mustn't have been leathering we mustn't have been leathering you mustn't have been leathering they mustn't have been leathering
Forma interrogativa
Forma semplice
must I leather? must you leather? must he leather? must we leather? must you leather? must they leather?
Forma con V-ing
must I be leathering? must you be leathering? must he be leathering? must we be leathering? must you be leathering? must they be leathering?
Perfetto
must I have leathered? must you have leathered? must he have leathered? must we have leathered? must you have leathered? must they have leathered?
Perfetto con V-ing
must I have been leathering? must you have been leathering? must he have been leathering? must we have been leathering? must you have been leathering? must they have been leathering?
Forma interro-negativa
Forma semplice
mustn't I leather? mustn't you leather? mustn't he leather? mustn't we leather? mustn't you leather? mustn't they leather?
Forma con V-ing
mustn't I be leathering? mustn't you be leathering? mustn't he be leathering? mustn't we be leathering? mustn't you be leathering? mustn't they be leathering?
Perfetto
mustn't I have leathered? mustn't you have leathered? mustn't he have leathered? mustn't we have leathered? mustn't you have leathered? mustn't they have leathered?
Perfetto con V-ing
mustn't I have been leathering? mustn't you have been leathering? mustn't he have been leathering? mustn't we have been leathering? mustn't you have been leathering? mustn't they have been leathering?