I must stagnate you must stagnate she must stagnate we must stagnate you must stagnate they must stagnate
Forme en V-ing
I must be stagnating you must be stagnating she must be stagnating we must be stagnating you must be stagnating they must be stagnating
Perfect
I must have stagnated you must have stagnated she must have stagnated we must have stagnated you must have stagnated they must have stagnated
Perfect en V-ing
I must have been stagnating you must have been stagnating she must have been stagnating we must have been stagnating you must have been stagnating they must have been stagnating
Négation
Forme simple
I mustn't stagnate you mustn't stagnate she mustn't stagnate we mustn't stagnate you mustn't stagnate they mustn't stagnate
Forme en V-ing
I mustn't be stagnating you mustn't be stagnating she mustn't be stagnating we mustn't be stagnating you mustn't be stagnating they mustn't be stagnating
Perfect
I mustn't have stagnated you mustn't have stagnated she mustn't have stagnated we mustn't have stagnated you mustn't have stagnated they mustn't have stagnated
Perfect en V-ing
I mustn't have been stagnating you mustn't have been stagnating she mustn't have been stagnating we mustn't have been stagnating you mustn't have been stagnating they mustn't have been stagnating
Forme interrogative
Forme simple
must I stagnate? must you stagnate? must she stagnate? must we stagnate? must you stagnate? must they stagnate?
Forme en V-ing
must I be stagnating? must you be stagnating? must she be stagnating? must we be stagnating? must you be stagnating? must they be stagnating?
Perfect
must I have stagnated? must you have stagnated? must she have stagnated? must we have stagnated? must you have stagnated? must they have stagnated?
Perfect en V-ing
must I have been stagnating? must you have been stagnating? must she have been stagnating? must we have been stagnating? must you have been stagnating? must they have been stagnating?
Forme interro-négative
Forme simple
mustn't I stagnate? mustn't you stagnate? mustn't she stagnate? mustn't we stagnate? mustn't you stagnate? mustn't they stagnate?
Forme en V-ing
mustn't I be stagnating? mustn't you be stagnating? mustn't she be stagnating? mustn't we be stagnating? mustn't you be stagnating? mustn't they be stagnating?
Perfect
mustn't I have stagnated? mustn't you have stagnated? mustn't she have stagnated? mustn't we have stagnated? mustn't you have stagnated? mustn't they have stagnated?
Perfect en V-ing
mustn't I have been stagnating? mustn't you have been stagnating? mustn't she have been stagnating? mustn't we have been stagnating? mustn't you have been stagnating? mustn't they have been stagnating?