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