shall backcross
Verbe régulier : backcross - backcrossed- backcrossed

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

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

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

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