I can acidify you can acidify he can acidify we can acidify you can acidify they can acidify
Forme en V-ing
I can be acidifying you can be acidifying he can be acidifying we can be acidifying you can be acidifying they can be acidifying
Perfect
I can have acidified you can have acidified he can have acidified we can have acidified you can have acidified they can have acidified
Perfect en V-ing
I can have been acidifying you can have been acidifying he can have been acidifying we can have been acidifying you can have been acidifying they can have been acidifying
Négation
Forme simple
I cannot acidify you cannot acidify he cannot acidify we cannot acidify you cannot acidify they cannot acidify
Forme en V-ing
I cannot be acidifying you cannot be acidifying he cannot be acidifying we cannot be acidifying you cannot be acidifying they cannot be acidifying
Perfect
I cannot have acidified you cannot have acidified he cannot have acidified we cannot have acidified you cannot have acidified they cannot have acidified
Perfect en V-ing
I cannot have been acidifying you cannot have been acidifying he cannot have been acidifying we cannot have been acidifying you cannot have been acidifying they cannot have been acidifying
Forme interrogative
Forme simple
can I acidify? can you acidify? can he acidify? can we acidify? can you acidify? can they acidify?
Forme en V-ing
can I be acidifying? can you be acidifying? can he be acidifying? can we be acidifying? can you be acidifying? can they be acidifying?
Perfect
can I have acidified? can you have acidified? can he have acidified? can we have acidified? can you have acidified? can they have acidified?
Perfect en V-ing
can I have been acidifying? can you have been acidifying? can he have been acidifying? can we have been acidifying? can you have been acidifying? can they have been acidifying?
Forme interro-négative
Forme simple
can I not acidify? can you not acidify? can he not acidify? can we not acidify? can you not acidify? can they not acidify?
Forme en V-ing
can I not be acidifying? can you not be acidifying? can he not be acidifying? can we not be acidifying? can you not be acidifying? can they not be acidifying?
Perfect
can I not have acidified? can you not have acidified? can he not have acidified? can we not have acidified? can you not have acidified? can they not have acidified?
Perfect en V-ing
can I not have been acidifying? can you not have been acidifying? can he not have been acidifying? can we not have been acidifying? can you not have been acidifying? can they not have been acidifying?