Conjugaison du verbe anglais
COULD SCREECH

Verbe régulier : screech - screeched - screeched
Traduction française : ululer - hurler

Affirmation

Forme simple	Forme en V-ing
I could screech you could screech he could screech we could screech you could screech they could screech	I could be screeching you could be screeching he could be screeching we could be screeching you could be screeching they could be screeching
Perfect	Perfect en V-ing
I could have screeched you could have screeched he could have screeched we could have screeched you could have screeched they could have screeched	I could have been screeching you could have been screeching he could have been screeching we could have been screeching you could have been screeching they could have been screeching

Négation

Forme simple	Forme en V-ing
I could not screech you could not screech he could not screech we could not screech you could not screech they could not screech	I could not be screeching you could not be screeching he could not be screeching we could not be screeching you could not be screeching they could not be screeching
Perfect	Perfect en V-ing
I could not have screeched you could not have screeched he could not have screeched we could not have screeched you could not have screeched they could not have screeched	I could not have been screeching you could not have been screeching he could not have been screeching we could not have been screeching you could not have been screeching they could not have been screeching

Forme interrogative

Forme simple	Forme en V-ing
could I screech? could you screech? could he screech? could we screech? could you screech? could they screech?	could I be screeching? could you be screeching? could he be screeching? could we be screeching? could you be screeching? could they be screeching?
Perfect	Perfect en V-ing
could I have screeched? could you have screeched? could he have screeched? could we have screeched? could you have screeched? could they have screeched?	could I have been screeching? could you have been screeching? could he have been screeching? could we have been screeching? could you have been screeching? could they have been screeching?

Forme interro-négative

Forme simple	Forme en V-ing
could I not screech? could you not screech? could he not screech? could we not screech? could you not screech? could they not screech?	could I not be screeching? could you not be screeching? could he not be screeching? could we not be screeching? could you not be screeching? could they not be screeching?
Perfect	Perfect en V-ing
could I not have screeched? could you not have screeched? could he not have screeched? could we not have screeched? could you not have screeched? could they not have screeched?	could I not have been screeching? could you not have been screeching? could he not have been screeching? could we not have been screeching? could you not have been screeching? could they not have been screeching?