Conjugaison du verbe anglais
COULD CONCENTRATE

Verbe régulier : concentrate - concentrated - concentrated
Traduction française : se concentrer - concentrer

Affirmation

Forme simple	Forme en V-ing
I could concentrate you could concentrate he could concentrate we could concentrate you could concentrate they could concentrate	I could be concentrating you could be concentrating he could be concentrating we could be concentrating you could be concentrating they could be concentrating
Perfect	Perfect en V-ing
I could have concentrated you could have concentrated he could have concentrated we could have concentrated you could have concentrated they could have concentrated	I could have been concentrating you could have been concentrating he could have been concentrating we could have been concentrating you could have been concentrating they could have been concentrating

Négation

Forme simple	Forme en V-ing
I could not concentrate you could not concentrate he could not concentrate we could not concentrate you could not concentrate they could not concentrate	I could not be concentrating you could not be concentrating he could not be concentrating we could not be concentrating you could not be concentrating they could not be concentrating
Perfect	Perfect en V-ing
I could not have concentrated you could not have concentrated he could not have concentrated we could not have concentrated you could not have concentrated they could not have concentrated	I could not have been concentrating you could not have been concentrating he could not have been concentrating we could not have been concentrating you could not have been concentrating they could not have been concentrating

Forme interrogative

Forme simple	Forme en V-ing
could I concentrate? could you concentrate? could he concentrate? could we concentrate? could you concentrate? could they concentrate?	could I be concentrating? could you be concentrating? could he be concentrating? could we be concentrating? could you be concentrating? could they be concentrating?
Perfect	Perfect en V-ing
could I have concentrated? could you have concentrated? could he have concentrated? could we have concentrated? could you have concentrated? could they have concentrated?	could I have been concentrating? could you have been concentrating? could he have been concentrating? could we have been concentrating? could you have been concentrating? could they have been concentrating?

Forme interro-négative

Forme simple	Forme en V-ing
could I not concentrate? could you not concentrate? could he not concentrate? could we not concentrate? could you not concentrate? could they not concentrate?	could I not be concentrating? could you not be concentrating? could he not be concentrating? could we not be concentrating? could you not be concentrating? could they not be concentrating?
Perfect	Perfect en V-ing
could I not have concentrated? could you not have concentrated? could he not have concentrated? could we not have concentrated? could you not have concentrated? could they not have concentrated?	could I not have been concentrating? could you not have been concentrating? could he not have been concentrating? could we not have been concentrating? could you not have been concentrating? could they not have been concentrating?