I ought to thumbtack you ought to thumbtack he ought to thumbtack we ought to thumbtack you ought to thumbtack they ought to thumbtack
V-ing form
I ought to be thumbtacking you ought to be thumbtacking he ought to be thumbtacking we ought to be thumbtacking you ought to be thumbtacking they ought to be thumbtacking
Perfect
I ought to have thumbtacked you ought to have thumbtacked he ought to have thumbtacked we ought to have thumbtacked you ought to have thumbtacked they ought to have thumbtacked
V-ing perfect
I ought to have been thumbtacking you ought to have been thumbtacking he ought to have been thumbtacking we ought to have been thumbtacking you ought to have been thumbtacking they ought to have been thumbtacking
Negation
Simple form
I ought not to thumbtack you ought not to thumbtack he ought not to thumbtack we ought not to thumbtack you ought not to thumbtack they ought not to thumbtack
V-ing form
I ought not to thumbtacking you ought not to thumbtacking he ought not to thumbtacking we ought not to thumbtacking you ought not to thumbtacking they ought not to thumbtacking
Perfect
I ought not to have thumbtacked you ought not to have thumbtacked he ought not to have thumbtacked we ought not to have thumbtacked you ought not to have thumbtacked they ought not to have thumbtacked
V-ing perfect
I ought not to have been thumbtacking you ought not to have been thumbtacking he ought not to have been thumbtacking we ought not to have been thumbtacking you ought not to have been thumbtacking they ought not to have been thumbtacking
Interrogative form
Simple form
ought to I thumbtack? ought to you thumbtack? ought to he thumbtack? ought to we thumbtack? ought to you thumbtack? ought to they thumbtack?
V-ing form
ought to I be thumbtacking? ought to you be thumbtacking? ought to he be thumbtacking? ought to we be thumbtacking? ought to you be thumbtacking? ought to they be thumbtacking?
Perfect
ought to I have thumbtacked? ought to you have thumbtacked? ought to he have thumbtacked? ought to we have thumbtacked? ought to you have thumbtacked? ought to they have thumbtacked?
V-ing perfect
ought to I have been thumbtacking? ought to you have been thumbtacking? ought to he have been thumbtacking? ought to we have been thumbtacking? ought to you have been thumbtacking? ought to they have been thumbtacking?
Interro-negative form
Simple form
ought I not to thumbtack? ought you not to thumbtack? ought he not to thumbtack? ought we not to thumbtack? ought you not to thumbtack? ought they not to thumbtack?
V-ing form
ought I not to be thumbtacking? ought you not to be thumbtacking? ought he not to be thumbtacking? ought we not to be thumbtacking? ought you not to be thumbtacking? ought they not to be thumbtacking?
Perfect
ought I not to have thumbtacked? ought you not to have thumbtacked? ought he not to have thumbtacked? ought we not to have thumbtacked? ought you not to have thumbtacked? ought they not to have thumbtacked?
V-ing perfect
ought I not to have been thumbtacking? ought you not to have been thumbtacking? ought he not to have been thumbtacking? ought we not to have been thumbtacking? ought you not to have been thumbtacking? ought they not to have been thumbtacking?