I can codify you can codify she can codify we can codify you can codify they can codify
Forme en V-ing
I can be codifying you can be codifying she can be codifying we can be codifying you can be codifying they can be codifying
Perfect
I can have codified you can have codified she 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 she can have been codifying we can have been codifying you can have been codifying they can have been codifying
Négation
Forme simple
I cannot codify you cannot codify she cannot codify we cannot codify you cannot codify they cannot codify
Forme en V-ing
I cannot be codifying you cannot be codifying she cannot be codifying we cannot be codifying you cannot be codifying they cannot be codifying
Perfect
I cannot have codified you cannot have codified she cannot have codified we cannot have codified you cannot have codified they cannot have codified
Perfect en V-ing
I cannot have been codifying you cannot have been codifying she cannot have been codifying we cannot have been codifying you cannot have been codifying they cannot have been codifying
Forme interrogative
Forme simple
can I codify? can you codify? can she codify? can we codify? can you codify? can they codify?
Forme en V-ing
can I be codifying? can you be codifying? can she be codifying? can we be codifying? can you be codifying? can they be codifying?
Perfect
can I have codified? can you have codified? can she 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 she have been codifying? can we have been codifying? can you have been codifying? can they have been codifying?
Forme interro-négative
Forme simple
can I not codify? can you not codify? can she not codify? can we not codify? can you not codify? can they not codify?
Forme en V-ing
can I not be codifying? can you not be codifying? can she not be codifying? can we not be codifying? can you not be codifying? can they not be codifying?
Perfect
can I not have codified? can you not have codified? can she not have codified? can we not have codified? can you not have codified? can they not have codified?
Perfect en V-ing
can I not have been codifying? can you not have been codifying? can she not have been codifying? can we not have been codifying? can you not have been codifying? can they not have been codifying?