shall backcross
Regular verb: backcross - backcrossed- backcrossed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'll backcross
you'll backcross
she'll backcross
we'll backcross
you'll backcross
they'll backcross 	I'll be backcrossing
you'll be backcrossing
she'll be backcrossing
we'll be backcrossing
you'll be backcrossing
they'll be backcrossing	I'll have backcrossed
you'll have backcrossed
she'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
she'll have been backcrossing
we'll have been backcrossing
you'll have been backcrossing
they'll have been backcrossing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shan't backcross
you shan't backcross
she 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
she 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
she 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
she shan't have been backcrossing
we shan't have been backcrossing
you shan't have been backcrossing
they shan't have been backcrossing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shan't I backcross?
shan't you backcross?
shan't she 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 she 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 she 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 she have been backcrossing?
shan't we have been backcrossing?
shan't you have been backcrossing?
shan't they have been backcrossing?