I'll be backfiting you'll be backfiting he'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 he'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 he'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 he 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 he 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 he 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 he 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 he backfit? shall we backfit? shall you backfit? shall they backfit?
V-ing form
shall I be backfiting? shall you be backfiting? shall he 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 he 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 he 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 he 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 he 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 he 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 he have been backfiting? shan't we have been backfiting? shan't you have been backfiting? shan't they have been backfiting?