I must purify you must purify he must purify we must purify you must purify they must purify
Forme en 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
Perfect
I must have purified you must have purified he must have purified we must have purified you must have purified they must have purified
Perfect en 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
Négation
Forme 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
Forme en 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
Perfect
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
Perfect en 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
Forme interrogative
Forme simple
must I purify? must you purify? must he purify? must we purify? must you purify? must they purify?
Forme en 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?
Perfect
must I have purified? must you have purified? must he have purified? must we have purified? must you have purified? must they have purified?
Perfect en 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?
Forme interro-négative
Forme 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?
Forme en 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?
Perfect
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?
Perfect en 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?