Third Conditional

Form
If + past perfect simple, subject + would + have + verb 3 (past participle)
Note:
- If + past simple = i.e. unreal past situation/condition
- subject + would + have + verb 3 = i.e. impossible result
- You can use some modals like could instead of would.


Usage

We use third conditional to talk about unreal (not true) past situation(s) and its impossible result(s).

For examples,
If I had studied hard, I would have passed the exam. [= I didn't study, and I failed the exam. ]
If she had come to the party, she would have met Sophal. [= She didn't come, and she didn’t meet John. ]

ការប្រើៈ យើងប្រើ Third conditional ដើម្បី បង្ហាញពីលក្ខខណ្ឌ ដែលផ្ទុយនឹងការពិត (ក្នុងអតីត កាល) និង លទ្ធផលដែលមិនអាចនឹងកើតមានឡើង (ឬលទ្ធផលដែលផ្ទុយពីការពិតក្នុងអតីត កាល)។  វាជា ការ បង្ហាញនូវភាពសោកស្តាយនូវទង្វើ ឬស្ថានភាពមួយក្នុងអតីតកាល។