Past Perfect Simple: its Form & use in Khmer

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Past perfect Simple
1. Form.
-Positive Sub + had + Vpp + (obj).
- I had seen him before.
- She had finished her work.
- We'd lived in Phnom Penh for ten years before 2010.
-Negative
Sub + had not (hadn't) + Vpp+ (obj).
- I hadn't seen him before.
- She had not finished her work.
- We'd not lived in Phnom Penh for ten years before 2010.
Question Had + Sub + Vpp + (Obj)?
W.h. + (n) + had + Sub + Vpp + ...?
- Had you seen Sam before?
- Had she finished her work on time?
- How long had they lived in Phnom Penh before 2010?
*** Use: The Pat perfect is used to make clear that one action in the past happened before another action in the past.
- When I got home, I found that someone had broken into my apartment and had stolen my DVD player.
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