Correct sentence: The honor killings that have been perpetuated by societies are exacting a deadly toll on vulnerable individuals, exacerbating the excruciating norms even more.

Correct sentence: The honor killings that have been perpetuated by societies are exacting a deadly toll on vulnerable individuals, exacerbating the excruciating norms even more.

Explanation
  Sentence Correction
The honor killings that have been perpetuated by societies are exacting a deadly toll on vulnerable individuals, exacerbating the excruciating norms further.


Explanation
In this sentence, there are four errors:
one is related to the use of incorrect verb form;
the second is related to the use of articles;
the third is related to the use of relative pronouns;
the last is related to wordiness.


Error 1: Incorrect Verb Form (“having been perpetuate”)


Error 2: Unnecessary “the” Before “Societies”
The word “societies” is a general plural noun, so “the” is not needed unless referring to specific societies.


Error 3: Incorrect Use of “Which” Instead of “Who”
The relative pronoun “which” is used for things (objects, ideas, animals).