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