I shall backfill you shall backfill she shall backfill we shall backfill you shall backfill they shall backfill
V-ing form
I shall be backfilling you shall be backfilling she shall be backfilling we shall be backfilling you shall be backfilling they shall be backfilling
Perfect
I shall have backfilled you shall have backfilled she shall have backfilled we shall have backfilled you shall have backfilled they shall have backfilled
V-ing perfect
I shall have been backfilling you shall have been backfilling she shall have been backfilling we shall have been backfilling you shall have been backfilling they shall have been backfilling
Negation
Simple form
I shall not backfill you shall not backfill she shall not backfill we shall not backfill you shall not backfill they shall not backfill
V-ing form
I shall not be backfilling you shall not be backfilling she shall not be backfilling we shall not be backfilling you shall not be backfilling they shall not be backfilling
Perfect
I shall not have backfilled you shall not have backfilled she shall not have backfilled we shall not have backfilled you shall not have backfilled they shall not have backfilled
V-ing perfect
I shall not have been backfilling you shall not have been backfilling she shall not have been backfilling we shall not have been backfilling you shall not have been backfilling they shall not have been backfilling
Interrogative form
Simple form
shall I backfill? shall you backfill? shall she backfill? shall we backfill? shall you backfill? shall they backfill?
V-ing form
shall I be backfilling? shall you be backfilling? shall she be backfilling? shall we be backfilling? shall you be backfilling? shall they be backfilling?
Perfect
shall I have backfilled? shall you have backfilled? shall she have backfilled? shall we have backfilled? shall you have backfilled? shall they have backfilled?
V-ing perfect
shall I have been backfilling? shall you have been backfilling? shall she have been backfilling? shall we have been backfilling? shall you have been backfilling? shall they have been backfilling?
Interro-negative form
Simple form
shall I not backfill? shall you not backfill? shall she not backfill? shall we not backfill? shall you not backfill? shall they not backfill?
V-ing form
shall I not be backfilling? shall you not be backfilling? shall she not be backfilling? shall we not be backfilling? shall you not be backfilling? shall they not be backfilling?
Perfect
shall I not have backfilled? shall you not have backfilled? shall she not have backfilled? shall we not have backfilled? shall you not have backfilled? shall they not have backfilled?
V-ing perfect
shall I not have been backfilling? shall you not have been backfilling? shall she not have been backfilling? shall we not have been backfilling? shall you not have been backfilling? shall they not have been backfilling?