English verb conjugation
OUGHT TO BACKFIT

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

Affirmation

Simple form	V-ing form
I ought to backfit you ought to backfit she ought to backfit we ought to backfit you ought to backfit they ought to backfit	I ought to be backfiting you ought to be backfiting she ought to be backfiting we ought to be backfiting you ought to be backfiting they ought to be backfiting
Perfect	V-ing perfect
I ought to have backfit, backfitted you ought to have backfit, backfitted she ought to have backfit, backfitted we ought to have backfit, backfitted you ought to have backfit, backfitted they ought to have backfit, backfitted	I ought to have been backfiting you ought to have been backfiting she ought to have been backfiting we ought to have been backfiting you ought to have been backfiting they ought to have been backfiting

Negation

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

Interrogative form

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

Interro-negative form

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