This is a question tag, isn’t it?
We use question tags to check information that we think is probably true. So, for example, we would say:
Your birthday is March 15th, isn’t it?
If you had already been told the person’s birthday but weren’t sure if you remembered it correctly.
If you were didn’t know the person’s birthday at all, you would just ask:
When is your birthday?
Forming question tags is easy. You just take your statement:
Panha is from Siem Reap.
and:
1. Change the period to a comma.
Panha is from Siem Reap,
2. Take the auxiliary verb from earlier in the sentence. If there is no auxiliary verb, use to do.
Panha is from Siem Reap, is
3. Make the auxiliary verb the opposite of what it was earlier. If it was positive (are), make it negative (aren’t). If it was negative (won’t), make it positive (will).
Panha is from Siem Reap, isn't
4. Take the pronoun from earlier in the sentence. If there is no pronoun, use the correct one to refer to the subject.
Panha is from Siem Reap, isn't he
5. Add a question mark at the end.
Panha is from Siem Reap, isn't he?
Some more examples:
Pising goes to UHS.
Pising goes to UHS, doesn't she?
I can come to your party.
I can come to your party, can't I?
We will have a test on Friday.
We will have a test on Friday, won't we?
NOTE: If a negative is expressed through words other than not, that also counts. For example:
No one will get hurt at the game.
No one will get hurt at the game, will they?
You have never been to Thailand.
You have never been to Thailand, have you?
Nothing makes you happy.
Nothing makes you happy, does it?