shall back
Regular verb: back - backed- backed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'll back
you'll back
she'll back
we'll back
you'll back
they'll back 	I'll be backing
you'll be backing
she'll be backing
we'll be backing
you'll be backing
they'll be backing	I'll have backed
you'll have backed
she'll have backed
we'll have backed
you'll have backed
they'll have backed	I'll have been backing
you'll have been backing
she'll have been backing
we'll have been backing
you'll have been backing
they'll have been backing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shan't back
you shan't back
she shan't back
we shan't back
you shan't back
they shan't back 	I shan't be backing
you shan't be backing
she shan't be backing
we shan't be backing
you shan't be backing
they shan't be backing	I shan't have backed
you shan't have backed
she shan't have backed
we shan't have backed
you shan't have backed
they shan't have backed	I shan't have been backing
you shan't have been backing
she shan't have been backing
we shan't have been backing
you shan't have been backing
they shan't have been backing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shall I back?
shall you back?
shall she back?
shall we back?
shall you back?
shall they back? 	shall I be backing?
shall you be backing?
shall she be backing?
shall we be backing?
shall you be backing?
shall they be backing? 	shall I have backed?
shall you have backed?
shall she have backed?
shall we have backed?
shall you have backed?
shall they have backed? 	shall I have been backing?
shall you have been backing?
shall she have been backing?
shall we have been backing?
shall you have been backing?
shall they have been backing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shan't I back?
shan't you back?
shan't she back?
shan't we back?
shan't you back?
shan't they back? 	shan't I be backing?
shan't you be backing?
shan't she be backing?
shan't we be backing?
shan't you be backing?
shan't they be backing? 	shan't I have backed?
shan't you have backed?
shan't she have backed?
shan't we have backed?
shan't you have backed?
shan't they have backed? 	shan't I have been backing?
shan't you have been backing?
shan't she have been backing?
shan't we have been backing?
shan't you have been backing?
shan't they have been backing?