Q
Hard 1 Mark
English Sentence Correction & Common Errors
Choose the sentence with correct and consistent tense usage.
Explanation
This describes a hypothetical past situation, so it requires the third conditional pattern: "had + past participle" in the if-clause and "would have + past participle" in the main clause.
Reference: Skoolyst English Grammar Guide , Page 3
Hint
For an unreal past situation, both clauses must stay in the past — never mix in "will."