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