Hello
sa-wad-dee-ka/krub (for lady/man)

How are you?
sa-bai-dee-mai?

I'm fine
sa-bai-dee

See you later
la-gorn

Good luck!
chok-dee-na

Yes
chai

No
mai-chai

Thank you
kob-khun

I'm sorry(Apologize)
kor-thod

Help me please
chuay-duay