English verb conjugation
OUGHT TO UNTACK

Regular verb: untack - untacked - untacked

Affirmation

Simple form	V-ing form
I ought to untack you ought to untack he ought to untack we ought to untack you ought to untack they ought to untack	I ought to be untacking you ought to be untacking he ought to be untacking we ought to be untacking you ought to be untacking they ought to be untacking
Perfect	V-ing perfect
I ought to have untacked you ought to have untacked he ought to have untacked we ought to have untacked you ought to have untacked they ought to have untacked	I ought to have been untacking you ought to have been untacking he ought to have been untacking we ought to have been untacking you ought to have been untacking they ought to have been untacking

Negation

Simple form	V-ing form
I oughtn't to untack you oughtn't to untack he oughtn't to untack we oughtn't to untack you oughtn't to untack they oughtn't to untack	I oughtn't to be untacking you oughtn't to be untacking he oughtn't to be untacking we oughtn't to be untacking you oughtn't to be untacking they oughtn't to be untacking
Perfect	V-ing perfect
I oughtn't to have untacked you oughtn't to have untacked he oughtn't to have untacked we oughtn't to have untacked you oughtn't to have untacked they oughtn't to have untacked	I oughtn't to have been untacking you oughtn't to have been untacking he oughtn't to have been untacking we oughtn't to have been untacking you oughtn't to have been untacking they oughtn't to have been untacking

Interrogative form

Simple form	V-ing form
ought to I untack? ought to you untack? ought to he untack? ought to we untack? ought to you untack? ought to they untack?	ought to I be untacking? ought to you be untacking? ought to he be untacking? ought to we be untacking? ought to you be untacking? ought to they be untacking?
Perfect	V-ing perfect
ought to I have untacked? ought to you have untacked? ought to he have untacked? ought to we have untacked? ought to you have untacked? ought to they have untacked?	ought to I have been untacking? ought to you have been untacking? ought to he have been untacking? ought to we have been untacking? ought to you have been untacking? ought to they have been untacking?

Interro-negative form

Simple form	V-ing form
oughtn't I to untack? oughtn't you to untack? oughtn't he to untack? oughtn't we to untack? oughtn't you to untack? oughtn't they to untack?	oughtn't I to be untacking? oughtn't you to be untacking? oughtn't he to be untacking? oughtn't we to be untacking? oughtn't you to be untacking? oughtn't they to be untacking?
Perfect	V-ing perfect
oughtn't I to have untacked? oughtn't you to have untacked? oughtn't he to have untacked? oughtn't we to have untacked? oughtn't you to have untacked? oughtn't they to have untacked?	oughtn't I to have been untacking? oughtn't you to have been untacking? oughtn't he to have been untacking? oughtn't we to have been untacking? oughtn't you to have been untacking? oughtn't they to have been untacking?