I can specify you can specify he can specify we can specify you can specify they can specify
Forme en V-ing
I can be specifying you can be specifying he can be specifying we can be specifying you can be specifying they can be specifying
Perfect
I can have specified you can have specified he can have specified we can have specified you can have specified they can have specified
Perfect en V-ing
I can have been specifying you can have been specifying he can have been specifying we can have been specifying you can have been specifying they can have been specifying
Négation
Forme simple
I cannot specify you cannot specify he cannot specify we cannot specify you cannot specify they cannot specify
Forme en V-ing
I cannot be specifying you cannot be specifying he cannot be specifying we cannot be specifying you cannot be specifying they cannot be specifying
Perfect
I cannot have specified you cannot have specified he cannot have specified we cannot have specified you cannot have specified they cannot have specified
Perfect en V-ing
I cannot have been specifying you cannot have been specifying he cannot have been specifying we cannot have been specifying you cannot have been specifying they cannot have been specifying
Forme interrogative
Forme simple
can I specify? can you specify? can he specify? can we specify? can you specify? can they specify?
Forme en V-ing
can I be specifying? can you be specifying? can he be specifying? can we be specifying? can you be specifying? can they be specifying?
Perfect
can I have specified? can you have specified? can he have specified? can we have specified? can you have specified? can they have specified?
Perfect en V-ing
can I have been specifying? can you have been specifying? can he have been specifying? can we have been specifying? can you have been specifying? can they have been specifying?
Forme interro-négative
Forme simple
can I not specify? can you not specify? can he not specify? can we not specify? can you not specify? can they not specify?
Forme en V-ing
can I not be specifying? can you not be specifying? can he not be specifying? can we not be specifying? can you not be specifying? can they not be specifying?
Perfect
can I not have specified? can you not have specified? can he not have specified? can we not have specified? can you not have specified? can they not have specified?
Perfect en V-ing
can I not have been specifying? can you not have been specifying? can he not have been specifying? can we not have been specifying? can you not have been specifying? can they not have been specifying?