Had I possessed vast property, ____________.

• Third conditional এর নিয়মানুযায়ী - 
- Conditional sentence- এ Had + Sub + V3 + Ext. এভাবে কোন Sentence শুরু হলে সেটিও Perfect conditional/ 3rd conditional হয়।
- তাই পরবর্তী clause এ - would/could/might + have + V3 + extension. ব্যবহৃত হয়।

• নিয়মানুযায়ী শূন্যস্থানে সঠিক উত্তর হবে - I would have established a hospital.
- Complete sentence: Had I possessed vast property, I would have established a hospital.

• More Example:
- Had I been a king, I would have helped the poor.
- Had I possessed vast property, I would have established a college.