I must codify you must codify he must codify we must codify you must codify they must codify
Forme en V-ing
I must be codifying you must be codifying he must be codifying we must be codifying you must be codifying they must be codifying
Perfect
I must have codified you must have codified he must have codified we must have codified you must have codified they must have codified
Perfect en V-ing
I must have been codifying you must have been codifying he must have been codifying we must have been codifying you must have been codifying they must have been codifying
Négation
Forme simple
I mustn't codify you mustn't codify he mustn't codify we mustn't codify you mustn't codify they mustn't codify
Forme en V-ing
I mustn't be codifying you mustn't be codifying he mustn't be codifying we mustn't be codifying you mustn't be codifying they mustn't be codifying
Perfect
I mustn't have codified you mustn't have codified he mustn't have codified we mustn't have codified you mustn't have codified they mustn't have codified
Perfect en V-ing
I mustn't have been codifying you mustn't have been codifying he mustn't have been codifying we mustn't have been codifying you mustn't have been codifying they mustn't have been codifying
Forme interrogative
Forme simple
must I codify? must you codify? must he codify? must we codify? must you codify? must they codify?
Forme en V-ing
must I be codifying? must you be codifying? must he be codifying? must we be codifying? must you be codifying? must they be codifying?
Perfect
must I have codified? must you have codified? must he have codified? must we have codified? must you have codified? must they have codified?
Perfect en V-ing
must I have been codifying? must you have been codifying? must he have been codifying? must we have been codifying? must you have been codifying? must they have been codifying?
Forme interro-négative
Forme simple
mustn't I codify? mustn't you codify? mustn't he codify? mustn't we codify? mustn't you codify? mustn't they codify?
Forme en V-ing
mustn't I be codifying? mustn't you be codifying? mustn't he be codifying? mustn't we be codifying? mustn't you be codifying? mustn't they be codifying?
Perfect
mustn't I have codified? mustn't you have codified? mustn't he have codified? mustn't we have codified? mustn't you have codified? mustn't they have codified?
Perfect en V-ing
mustn't I have been codifying? mustn't you have been codifying? mustn't he have been codifying? mustn't we have been codifying? mustn't you have been codifying? mustn't they have been codifying?