I'll be backfiting you'll be backfiting she'll be backfiting we'll be backfiting you'll be backfiting they'll be backfiting
Perfect
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
V-ing perfect
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
I shan't backfit you shan't backfit she shan't backfit we shan't backfit you shan't backfit they shan't backfit
V-ing form
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
Perfect
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
V-ing perfect
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
shall I backfit? shall you backfit? shall she backfit? shall we backfit? shall you backfit? shall they backfit?
V-ing form
shall I be backfiting? shall you be backfiting? shall she be backfiting? shall we be backfiting? shall you be backfiting? shall they be backfiting?
Perfect
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?
V-ing perfect
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
shan't I backfit? shan't you backfit? shan't she backfit? shan't we backfit? shan't you backfit? shan't they backfit?
V-ing form
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?
Perfect
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?
V-ing perfect
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?