I can recertify you can recertify he can recertify we can recertify you can recertify they can recertify
Forme en V-ing
I can be recertifying you can be recertifying he can be recertifying we can be recertifying you can be recertifying they can be recertifying
Perfect
I can have recertified you can have recertified he can have recertified we can have recertified you can have recertified they can have recertified
Perfect en V-ing
I can have been recertifying you can have been recertifying he can have been recertifying we can have been recertifying you can have been recertifying they can have been recertifying
Négation
Forme simple
I can't recertify you can't recertify he can't recertify we can't recertify you can't recertify they can't recertify
Forme en V-ing
I can't be recertifying you can't be recertifying he can't be recertifying we can't be recertifying you can't be recertifying they can't be recertifying
Perfect
I can't have recertified you can't have recertified he can't have recertified we can't have recertified you can't have recertified they can't have recertified
Perfect en V-ing
I can't have been recertifying you can't have been recertifying he can't have been recertifying we can't have been recertifying you can't have been recertifying they can't have been recertifying
Forme interrogative
Forme simple
can I recertify? can you recertify? can he recertify? can we recertify? can you recertify? can they recertify?
Forme en V-ing
can I be recertifying? can you be recertifying? can he be recertifying? can we be recertifying? can you be recertifying? can they be recertifying?
Perfect
can I have recertified? can you have recertified? can he have recertified? can we have recertified? can you have recertified? can they have recertified?
Perfect en V-ing
can I have been recertifying? can you have been recertifying? can he have been recertifying? can we have been recertifying? can you have been recertifying? can they have been recertifying?
Forme interro-négative
Forme simple
can't I recertify? can't you recertify? can't he recertify? can't we recertify? can't you recertify? can't they recertify?
Forme en V-ing
can't I be recertifying? can't you be recertifying? can't he be recertifying? can't we be recertifying? can't you be recertifying? can't they be recertifying?
Perfect
can't I have recertified? can't you have recertified? can't he have recertified? can't we have recertified? can't you have recertified? can't they have recertified?
Perfect en V-ing
can't I have been recertifying? can't you have been recertifying? can't he have been recertifying? can't we have been recertifying? can't you have been recertifying? can't they have been recertifying?