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