should backcross
Verbo regolare: backcross - backcrossed- backcrossed

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I should backcross
you should backcross
she should backcross
we should backcross
you should backcross
they should backcross 	I should be backcrossing
you should be backcrossing
she should be backcrossing
we should be backcrossing
you should be backcrossing
they should be backcrossing	I should have backcrossed
you should have backcrossed
she should have backcrossed
we should have backcrossed
you should have backcrossed
they should have backcrossed	I should have been backcrossing
you should have been backcrossing
she should have been backcrossing
we should have been backcrossing
you should have been backcrossing
they should have been backcrossing	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I should not backcross
you should not backcross
she should not backcross
we should not backcross
you should not backcross
they should not backcross 	I should not be backcrossing
you should not be backcrossing
she should not be backcrossing
we should not be backcrossing
you should not be backcrossing
they should not be backcrossing	I should not have backcrossed
you should not have backcrossed
she should not have backcrossed
we should not have backcrossed
you should not have backcrossed
they should not have backcrossed	I should not have been backcrossing
you should not have been backcrossing
she should not have been backcrossing
we should not have been backcrossing
you should not have been backcrossing
they should not have been backcrossing	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
should I backcross?
should you backcross?
should she backcross?
should we backcross?
should you backcross?
should they backcross? 	should I be backcrossing?
should you be backcrossing?
should she be backcrossing?
should we be backcrossing?
should you be backcrossing?
should they be backcrossing? 	should I have backcrossed?
should you have backcrossed?
should she have backcrossed?
should we have backcrossed?
should you have backcrossed?
should they have backcrossed? 	should I have been backcrossing?
should you have been backcrossing?
should she have been backcrossing?
should we have been backcrossing?
should you have been backcrossing?
should they have been backcrossing? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
should I not backcross?
should you not backcross?
should she not backcross?
should we not backcross?
should you not backcross?
should they not backcross? 	should I not be backcrossing?
should you not be backcrossing?
should she not be backcrossing?
should we not be backcrossing?
should you not be backcrossing?
should they not be backcrossing? 	should I not have backcrossed?
should you not have backcrossed?
should she not have backcrossed?
should we not have backcrossed?
should you not have backcrossed?
should they not have backcrossed? 	should I not have been backcrossing?
should you not have been backcrossing?
should she not have been backcrossing?
should we not have been backcrossing?
should you not have been backcrossing?
should they not have been backcrossing?