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