I would have been surprised if you … the orange

Analyze the question

The sentence is "I would have been surprised if you ____ the orange." The structure "would have + past participle" in the main clause signals a third conditional, which is used for imaginary situations in the past.

Explain the concept

The third conditional follows this pattern:

• If + past perfect (had + past participle), … would have + past participle

Example: If she had studied, she would have passed.

This describes something that did not happen in the past, or a hypothetical past situation, and its imagined result.

Show the solution

1. Main clause: "I would have been surprised" uses would have + past participle, so it is a third conditional.
2. The if-clause must therefore use the past perfect: had + past participle.
3. The past participle of "pluck" is "plucked", so the past perfect is had plucked.

Checking the options:

• A. plucked: simple past, which belongs to the second conditional (I would be surprised if you plucked...). It does not match "would have been".
• B. have plucked: present perfect, which is wrong after "if" in this structure.
• C. had plucked: past perfect, which is correct.
• D. did pluck: emphatic simple past, which does not fit the third conditional.

Complete sentence: "I would have been surprised if you had plucked the orange."

Answer: C

Exam tip

Match the conditional pairs:

• If + had + past participle → would have + past participle (third conditional)
• If + simple past → would + base verb (second conditional)

If you see "would have" in the main clause, look for "had + past participle" in the if-clause. You'll get these right every time.