If she had studied harder, she __________ the exam.

• 3rd Conditional এর নিয়মানুযায়ী,
- If clause- এ যদি (had + V3) হয়, তবে পরবর্তী clause a would/could/might + have + V₃ + extension ব্যবহৃত হয়।
- Conditional sentence এ Had + Sub + V₃ + Extension এভাবে কোন sentence শুরু হলে সেটি Perfect conditional / 3rd conditional হয়।

Complete sentence: If she had studied harder, she would have passed the exam.