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