Correct only FIVE of the given sentences (systemic inequalities as structural violence; "cleaned all the kitchen"; "have problem to fall asleep"; "If I will be in Lahore"; "The cultural globalization—it is…"; "researchers, who has found"; the experimental novel; honour killings).

Corrected sentences

Only five are required; all eight are worked out here.

1. Having been perpetuated for centuries, the systemic inequalities and discriminatory policies of the government, which have been institutionalized, are a form of structural violence that affects marginalized communities. (Comma after the opening participle phrase; "which" refers to the plural "inequalities and policies", so "have"; "that" refers to "a form of structural violence", so "affects".)

2. We cleaned the whole kitchen while our parents were out for dinner. ("All the kitchen" is unidiomatic with a singular count noun; "out for dinner" is the standard British form, though "out to dinner" is common in American English.)

3. If I'm stressed out about something, I tend to have trouble falling asleep. ("Have trouble / difficulty + -ing"; "problem" here would also need an article.)

4. If I am in Lahore, I will contact you. (A first conditional takes the present tense in the if-clause; "contact" takes a direct object, without "to".)

5. Cultural globalization — a phenomenon driven by technological advancements and economic integration — is a threat to local cultures. (No article before the abstract noun used generally; "it is" inside the dashes repeats the subject, so the parenthesis becomes an appositive.)

6. The impact of cybertechnology on modern society is being studied by researchers, who have found that it has both positive and negative effects. ("Who" refers to "researchers", which is plural.)

7. The experimental novel, which blends elements of poetry and prose, challenges traditional notions of storytelling and narrative structure, but by the time it is recognized as a masterpiece, it will have become widely accepted. (The future perfect needs a clear time reference first, and "will have become" fits better than the passive "will have been accepted". This item is less clear-cut than the others, so it is the one to leave out when choosing five.)

8. Honour killings perpetuated by society are exacting a deadly toll on vulnerable individuals and further entrenching oppressive norms. ("That having been perpetuate" is ungrammatical; "which are" wrongly refers to people; "exacerbating … more" is redundant, and "excruciating norms" is a wrong collocation.)

Tip

Examiners award the mark for the corrected sentence, so write it out in full. In long sentences, find the main subject and verb first; most errors in this paper are agreement errors hidden by long phrases.