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 couldn't prefacer you couldn't prefacer she couldn't prefacer we couldn't prefacer you couldn't prefacer they couldn't prefacer
Forme en V-ing
I couldn't be prefacering you couldn't be prefacering she couldn't be prefacering we couldn't be prefacering you couldn't be prefacering they couldn't be prefacering
Perfect
I couldn't have prefacered you couldn't have prefacered she couldn't have prefacered we couldn't have prefacered you couldn't have prefacered they couldn't have prefacered
Perfect en V-ing
I couldn't have been prefacering you couldn't have been prefacering she couldn't have been prefacering we couldn't have been prefacering you couldn't have been prefacering they couldn't 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
couldn't I prefacer? couldn't you prefacer? couldn't she prefacer? couldn't we prefacer? couldn't you prefacer? couldn't they prefacer?
Forme en V-ing
couldn't I be prefacering? couldn't you be prefacering? couldn't she be prefacering? couldn't we be prefacering? couldn't you be prefacering? couldn't they be prefacering?
Perfect
couldn't I have prefacered? couldn't you have prefacered? couldn't she have prefacered? couldn't we have prefacered? couldn't you have prefacered? couldn't they have prefacered?
Perfect en V-ing
couldn't I have been prefacering? couldn't you have been prefacering? couldn't she have been prefacering? couldn't we have been prefacering? couldn't you have been prefacering? couldn't they have been prefacering?