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