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