shall backfit
Irregular verb: backfit - backfit, backfitted- backfit, backfitted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'll backfit
you'll backfit
she'll backfit
we'll backfit
you'll backfit
they'll backfit 	I'll be backfiting
you'll be backfiting
she'll be backfiting
we'll be backfiting
you'll be backfiting
they'll be backfiting	I'll have backfit, backfitted
you'll have backfit, backfitted
she'll have backfit, backfitted
we'll have backfit, backfitted
you'll have backfit, backfitted
they'll have backfit, backfitted	I'll have been backfiting
you'll have been backfiting
she'll have been backfiting
we'll have been backfiting
you'll have been backfiting
they'll have been backfiting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shan't backfit
you shan't backfit
she shan't backfit
we shan't backfit
you shan't backfit
they shan't backfit 	I shan't be backfiting
you shan't be backfiting
she shan't be backfiting
we shan't be backfiting
you shan't be backfiting
they shan't be backfiting	I shan't have backfit, backfitted
you shan't have backfit, backfitted
she shan't have backfit, backfitted
we shan't have backfit, backfitted
you shan't have backfit, backfitted
they shan't have backfit, backfitted	I shan't have been backfiting
you shan't have been backfiting
she shan't have been backfiting
we shan't have been backfiting
you shan't have been backfiting
they shan't have been backfiting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shall I backfit?
shall you backfit?
shall she backfit?
shall we backfit?
shall you backfit?
shall they backfit? 	shall I be backfiting?
shall you be backfiting?
shall she be backfiting?
shall we be backfiting?
shall you be backfiting?
shall they be backfiting? 	shall I have backfit, backfitted?
shall you have backfit, backfitted?
shall she have backfit, backfitted?
shall we have backfit, backfitted?
shall you have backfit, backfitted?
shall they have backfit, backfitted? 	shall I have been backfiting?
shall you have been backfiting?
shall she have been backfiting?
shall we have been backfiting?
shall you have been backfiting?
shall they have been backfiting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shan't I backfit?
shan't you backfit?
shan't she backfit?
shan't we backfit?
shan't you backfit?
shan't they backfit? 	shan't I be backfiting?
shan't you be backfiting?
shan't she be backfiting?
shan't we be backfiting?
shan't you be backfiting?
shan't they be backfiting? 	shan't I have backfit, backfitted?
shan't you have backfit, backfitted?
shan't she have backfit, backfitted?
shan't we have backfit, backfitted?
shan't you have backfit, backfitted?
shan't they have backfit, backfitted? 	shan't I have been backfiting?
shan't you have been backfiting?
shan't she have been backfiting?
shan't we have been backfiting?
shan't you have been backfiting?
shan't they have been backfiting?