I ought to memorize you ought to memorize he ought to memorize we ought to memorize you ought to memorize they ought to memorize
V-ing form
I ought to be memorizing you ought to be memorizing he ought to be memorizing we ought to be memorizing you ought to be memorizing they ought to be memorizing
Perfect
I ought to have memorized you ought to have memorized he ought to have memorized we ought to have memorized you ought to have memorized they ought to have memorized
V-ing perfect
I ought to have been memorizing you ought to have been memorizing he ought to have been memorizing we ought to have been memorizing you ought to have been memorizing they ought to have been memorizing
Negation
Simple form
I ought not to memorize you ought not to memorize he ought not to memorize we ought not to memorize you ought not to memorize they ought not to memorize
V-ing form
I ought not to memorizing you ought not to memorizing he ought not to memorizing we ought not to memorizing you ought not to memorizing they ought not to memorizing
Perfect
I ought not to have memorized you ought not to have memorized he ought not to have memorized we ought not to have memorized you ought not to have memorized they ought not to have memorized
V-ing perfect
I ought not to have been memorizing you ought not to have been memorizing he ought not to have been memorizing we ought not to have been memorizing you ought not to have been memorizing they ought not to have been memorizing
Interrogative form
Simple form
ought to I memorize? ought to you memorize? ought to he memorize? ought to we memorize? ought to you memorize? ought to they memorize?
V-ing form
ought to I be memorizing? ought to you be memorizing? ought to he be memorizing? ought to we be memorizing? ought to you be memorizing? ought to they be memorizing?
Perfect
ought to I have memorized? ought to you have memorized? ought to he have memorized? ought to we have memorized? ought to you have memorized? ought to they have memorized?
V-ing perfect
ought to I have been memorizing? ought to you have been memorizing? ought to he have been memorizing? ought to we have been memorizing? ought to you have been memorizing? ought to they have been memorizing?
Interro-negative form
Simple form
ought I not to memorize? ought you not to memorize? ought he not to memorize? ought we not to memorize? ought you not to memorize? ought they not to memorize?
V-ing form
ought I not to be memorizing? ought you not to be memorizing? ought he not to be memorizing? ought we not to be memorizing? ought you not to be memorizing? ought they not to be memorizing?
Perfect
ought I not to have memorized? ought you not to have memorized? ought he not to have memorized? ought we not to have memorized? ought you not to have memorized? ought they not to have memorized?
V-ing perfect
ought I not to have been memorizing? ought you not to have been memorizing? ought he not to have been memorizing? ought we not to have been memorizing? ought you not to have been memorizing? ought they not to have been memorizing?