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