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Question

Difficulty: HardVerbs, Tenses, and Aspect

Consider the following sentence from an official audit report:

"Had the parliamentary committee scrutinised the auditor's financial report more thoroughly before the plenary session, the discrepancy in the budgetary allocation ________ long before the bill was passed into law."

Which of the following verb forms best completes the sentence to express the correct tense and aspectual alignment?

  1. would have been detectedAnswer
  2. B
    would be detected
  3. C
    had been detected
  4. D
    was detected

Answer

would have been detected
The sentence features an inverted third conditional structure ('Had the parliamentary committee scrutinised...'), which sets up a past hypothetical condition that did not happen. In English grammar, the main clause of a third conditional sentence must use the modal conditional perfect form ('would have' + past participle). Because the target noun 'discrepancy' is receiving the action of detection, the passive continuous aspectual verb string 'would have been detected' is grammatically mandatory.

Step-by-Step Solution

1
Analyze the clause structure and conditional marker in the subordinate clause.
The clause begins with 'Had the parliamentary committee scrutinised...', which is an inverted third conditional construction (equivalent to 'If the parliamentary committee had scrutinised...').
Recognizing inversion of the auxiliary 'had' helps determine that the sentence deals with an unfulfilled past condition.
2
Determine the required tense, aspect, and mood for the main clause.
A third conditional sentence requires a main clause formed with 'would have' + past participle (perfect conditional). Because the subject 'discrepancy' undergoes the action, the passive form 'would have been' + past participle is required.
The main clause must express a past hypothetical result aligned grammatically with the past perfect condition.
3
Evaluate the choices to select the grammatically correct passive conditional perfect form.
'would have been detected' fulfills all criteria of tense, aspect, and passive voice.
No other choice supplies both the perfect aspect modal frame ('would have been') and appropriate past participle.

Key Concept

Inverted Third Conditional and Perfect Aspect Alignment
Estimated Time:1m 30s
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Topics

Verbs, Tenses, and Aspect

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