shall backcross
Verbo regular: backcross - backcrossed- backcrossed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I'll backcross
you'll backcross
he'll backcross
we'll backcross
you'll backcross
they'll backcross 	I'll be backcrossing
you'll be backcrossing
he'll be backcrossing
we'll be backcrossing
you'll be backcrossing
they'll be backcrossing	I'll have backcrossed
you'll have backcrossed
he'll have backcrossed
we'll have backcrossed
you'll have backcrossed
they'll have backcrossed	I'll have been backcrossing
you'll have been backcrossing
he'll have been backcrossing
we'll have been backcrossing
you'll have been backcrossing
they'll have been backcrossing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I shan't backcross
you shan't backcross
he shan't backcross
we shan't backcross
you shan't backcross
they shan't backcross 	I shan't be backcrossing
you shan't be backcrossing
he shan't be backcrossing
we shan't be backcrossing
you shan't be backcrossing
they shan't be backcrossing	I shan't have backcrossed
you shan't have backcrossed
he shan't have backcrossed
we shan't have backcrossed
you shan't have backcrossed
they shan't have backcrossed	I shan't have been backcrossing
you shan't have been backcrossing
he shan't have been backcrossing
we shan't have been backcrossing
you shan't have been backcrossing
they shan't have been backcrossing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
shall I backcross?
shall you backcross?
shall he backcross?
shall we backcross?
shall you backcross?
shall they backcross? 	shall I be backcrossing?
shall you be backcrossing?
shall he be backcrossing?
shall we be backcrossing?
shall you be backcrossing?
shall they be backcrossing? 	shall I have backcrossed?
shall you have backcrossed?
shall he 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 he have been backcrossing?
shall we have been backcrossing?
shall you have been backcrossing?
shall they have been backcrossing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
shan't I backcross?
shan't you backcross?
shan't he backcross?
shan't we backcross?
shan't you backcross?
shan't they backcross? 	shan't I be backcrossing?
shan't you be backcrossing?
shan't he be backcrossing?
shan't we be backcrossing?
shan't you be backcrossing?
shan't they be backcrossing? 	shan't I have backcrossed?
shan't you have backcrossed?
shan't he have backcrossed?
shan't we have backcrossed?
shan't you have backcrossed?
shan't they have backcrossed? 	shan't I have been backcrossing?
shan't you have been backcrossing?
shan't he have been backcrossing?
shan't we have been backcrossing?
shan't you have been backcrossing?
shan't they have been backcrossing?