English verb conjugation
OUGHT TO BACKFIRE

Regular verb: backfire - backfired - backfired

Affirmation

Simple form	V-ing form
I ought to backfire you ought to backfire he ought to backfire we ought to backfire you ought to backfire they ought to backfire	I ought to be backfiring you ought to be backfiring he ought to be backfiring we ought to be backfiring you ought to be backfiring they ought to be backfiring
Perfect	V-ing perfect
I ought to have backfired you ought to have backfired he ought to have backfired we ought to have backfired you ought to have backfired they ought to have backfired	I ought to have been backfiring you ought to have been backfiring he ought to have been backfiring we ought to have been backfiring you ought to have been backfiring they ought to have been backfiring

Negation

Simple form	V-ing form
I oughtn't to backfire you oughtn't to backfire he oughtn't to backfire we oughtn't to backfire you oughtn't to backfire they oughtn't to backfire	I oughtn't to be backfiring you oughtn't to be backfiring he oughtn't to be backfiring we oughtn't to be backfiring you oughtn't to be backfiring they oughtn't to be backfiring
Perfect	V-ing perfect
I oughtn't to have backfired you oughtn't to have backfired he oughtn't to have backfired we oughtn't to have backfired you oughtn't to have backfired they oughtn't to have backfired	I oughtn't to have been backfiring you oughtn't to have been backfiring he oughtn't to have been backfiring we oughtn't to have been backfiring you oughtn't to have been backfiring they oughtn't to have been backfiring

Interrogative form

Simple form	V-ing form
ought to I backfire? ought to you backfire? ought to he backfire? ought to we backfire? ought to you backfire? ought to they backfire?	ought to I be backfiring? ought to you be backfiring? ought to he be backfiring? ought to we be backfiring? ought to you be backfiring? ought to they be backfiring?
Perfect	V-ing perfect
ought to I have backfired? ought to you have backfired? ought to he have backfired? ought to we have backfired? ought to you have backfired? ought to they have backfired?	ought to I have been backfiring? ought to you have been backfiring? ought to he have been backfiring? ought to we have been backfiring? ought to you have been backfiring? ought to they have been backfiring?

Interro-negative form

Simple form	V-ing form
oughtn't I to backfire? oughtn't you to backfire? oughtn't he to backfire? oughtn't we to backfire? oughtn't you to backfire? oughtn't they to backfire?	oughtn't I to be backfiring? oughtn't you to be backfiring? oughtn't he to be backfiring? oughtn't we to be backfiring? oughtn't you to be backfiring? oughtn't they to be backfiring?
Perfect	V-ing perfect
oughtn't I to have backfired? oughtn't you to have backfired? oughtn't he to have backfired? oughtn't we to have backfired? oughtn't you to have backfired? oughtn't they to have backfired?	oughtn't I to have been backfiring? oughtn't you to have been backfiring? oughtn't he to have been backfiring? oughtn't we to have been backfiring? oughtn't you to have been backfiring? oughtn't they to have been backfiring?