ought to memorize
Regular verb: memorize - memorized- memorized

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to memorize
you ought to memorize
she ought to memorize
we ought to memorize
you ought to memorize
they ought to memorize 	I ought to be memorizing
you ought to be memorizing
she ought to be memorizing
we ought to be memorizing
you ought to be memorizing
they ought to be memorizing	I ought to have memorized
you ought to have memorized
she ought to have memorized
we ought to have memorized
you ought to have memorized
they ought to have memorized	I ought to have been memorizing
you ought to have been memorizing
she 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 	V-ing form 	Perfect 	V-ing perfect 	
I ought not to memorize
you ought not to memorize
she ought not to memorize
we ought not to memorize
you ought not to memorize
they ought not to memorize 	I ought not to memorizing
you ought not to memorizing
she ought not to memorizing
we ought not to memorizing
you ought not to memorizing
they ought not to memorizing	I ought not to have memorized
you ought not to have memorized
she ought not to have memorized
we ought not to have memorized
you ought not to have memorized
they ought not to have memorized	I ought not to have been memorizing
you ought not to have been memorizing
she 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 	V-ing form 	Perfect 	V-ing perfect 	
ought to I memorize?
ought to you memorize?
ought to she memorize?
ought to we memorize?
ought to you memorize?
ought to they memorize? 	ought to I be memorizing?
ought to you be memorizing?
ought to she be memorizing?
ought to we be memorizing?
ought to you be memorizing?
ought to they be memorizing? 	ought to I have memorized?
ought to you have memorized?
ought to she have memorized?
ought to we have memorized?
ought to you have memorized?
ought to they have memorized? 	ought to I have been memorizing?
ought to you have been memorizing?
ought to she 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 	V-ing form 	Perfect 	V-ing perfect 	
ought I not to memorize?
ought you not to memorize?
ought she not to memorize?
ought we not to memorize?
ought you not to memorize?
ought they not to memorize? 	ought I not to be memorizing?
ought you not to be memorizing?
ought she not to be memorizing?
ought we not to be memorizing?
ought you not to be memorizing?
ought they not to be memorizing? 	ought I not to have memorized?
ought you not to have memorized?
ought she not to have memorized?
ought we not to have memorized?
ought you not to have memorized?
ought they not to have memorized? 	ought I not to have been memorizing?
ought you not to have been memorizing?
ought she 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?