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