Attention, ce verbe peut ne pas exister, la conjugaison est donnée à titre d'exemple.
Affirmation
Forme simple
I could prefacer you could prefacer she could prefacer we could prefacer you could prefacer they could prefacer
Forme en V-ing
I could be prefacering you could be prefacering she could be prefacering we could be prefacering you could be prefacering they could be prefacering
Perfect
I could have prefacered you could have prefacered she could have prefacered we could have prefacered you could have prefacered they could have prefacered
Perfect en V-ing
I could have been prefacering you could have been prefacering she could have been prefacering we could have been prefacering you could have been prefacering they could have been prefacering
Négation
Forme simple
I could not prefacer you could not prefacer she could not prefacer we could not prefacer you could not prefacer they could not prefacer
Forme en V-ing
I could not be prefacering you could not be prefacering she could not be prefacering we could not be prefacering you could not be prefacering they could not be prefacering
Perfect
I could not have prefacered you could not have prefacered she could not have prefacered we could not have prefacered you could not have prefacered they could not have prefacered
Perfect en V-ing
I could not have been prefacering you could not have been prefacering she could not have been prefacering we could not have been prefacering you could not have been prefacering they could not have been prefacering
Forme interrogative
Forme simple
could I prefacer? could you prefacer? could she prefacer? could we prefacer? could you prefacer? could they prefacer?
Forme en V-ing
could I be prefacering? could you be prefacering? could she be prefacering? could we be prefacering? could you be prefacering? could they be prefacering?
Perfect
could I have prefacered? could you have prefacered? could she have prefacered? could we have prefacered? could you have prefacered? could they have prefacered?
Perfect en V-ing
could I have been prefacering? could you have been prefacering? could she have been prefacering? could we have been prefacering? could you have been prefacering? could they have been prefacering?
Forme interro-négative
Forme simple
could I not prefacer? could you not prefacer? could she not prefacer? could we not prefacer? could you not prefacer? could they not prefacer?
Forme en V-ing
could I not be prefacering? could you not be prefacering? could she not be prefacering? could we not be prefacering? could you not be prefacering? could they not be prefacering?
Perfect
could I not have prefacered? could you not have prefacered? could she not have prefacered? could we not have prefacered? could you not have prefacered? could they not have prefacered?
Perfect en V-ing
could I not have been prefacering? could you not have been prefacering? could she not have been prefacering? could we not have been prefacering? could you not have been prefacering? could they not have been prefacering?