I must purify you must purify she must purify we must purify you must purify they must purify
Forme en V-ing
I must be purifying you must be purifying she must be purifying we must be purifying you must be purifying they must be purifying
Perfect
I must have purified you must have purified she 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 she 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 she 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 she 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 she 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 she 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 she purify? must we purify? must you purify? must they purify?
Forme en V-ing
must I be purifying? must you be purifying? must she be purifying? must we be purifying? must you be purifying? must they be purifying?
Perfect
must I have purified? must you have purified? must she 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 she 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 she 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 she 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 she 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 she have been purifying? mustn't we have been purifying? mustn't you have been purifying? mustn't they have been purifying?