Which sentence uses a perfect modal to express a past necessity that was not fulfilled?
- Aladdin might have found the magic carpet in the market.
- Aladdin should have warned Abu about touching the forbidden treasure.
- Aladdin must be more cautious next time he ventures out.
- Aladdin can have avoided the guards if he’d been more careful.
Explanation
Should have + past participle indicates an obligation or necessity in the past that didn’t happen.
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