Conjugaison du verbe anglais
COULD BACKCROSS

Verbe régulier : backcross - backcrossed - backcrossed

Affirmation

Forme simple	Forme en V-ing
I could backcross you could backcross she could backcross we could backcross you could backcross they could backcross	I could be backcrossing you could be backcrossing she could be backcrossing we could be backcrossing you could be backcrossing they could be backcrossing
Perfect	Perfect en V-ing
I could have backcrossed you could have backcrossed she could have backcrossed we could have backcrossed you could have backcrossed they could have backcrossed	I could have been backcrossing you could have been backcrossing she could have been backcrossing we could have been backcrossing you could have been backcrossing they could have been backcrossing

Négation

Forme simple	Forme en V-ing
I could not backcross you could not backcross she could not backcross we could not backcross you could not backcross they could not backcross	I could not be backcrossing you could not be backcrossing she could not be backcrossing we could not be backcrossing you could not be backcrossing they could not be backcrossing
Perfect	Perfect en V-ing
I could not have backcrossed you could not have backcrossed she could not have backcrossed we could not have backcrossed you could not have backcrossed they could not have backcrossed	I could not have been backcrossing you could not have been backcrossing she could not have been backcrossing we could not have been backcrossing you could not have been backcrossing they could not have been backcrossing

Forme interrogative

Forme simple	Forme en V-ing
could I backcross? could you backcross? could she backcross? could we backcross? could you backcross? could they backcross?	could I be backcrossing? could you be backcrossing? could she be backcrossing? could we be backcrossing? could you be backcrossing? could they be backcrossing?
Perfect	Perfect en V-ing
could I have backcrossed? could you have backcrossed? could she have backcrossed? could we have backcrossed? could you have backcrossed? could they have backcrossed?	could I have been backcrossing? could you have been backcrossing? could she have been backcrossing? could we have been backcrossing? could you have been backcrossing? could they have been backcrossing?

Forme interro-négative

Forme simple	Forme en V-ing
could I not backcross? could you not backcross? could she not backcross? could we not backcross? could you not backcross? could they not backcross?	could I not be backcrossing? could you not be backcrossing? could she not be backcrossing? could we not be backcrossing? could you not be backcrossing? could they not be backcrossing?
Perfect	Perfect en V-ing
could I not have backcrossed? could you not have backcrossed? could she not have backcrossed? could we not have backcrossed? could you not have backcrossed? could they not have backcrossed?	could I not have been backcrossing? could you not have been backcrossing? could she not have been backcrossing? could we not have been backcrossing? could you not have been backcrossing? could they not have been backcrossing?