In Thai, "nai" (ใน) means "inside" or "in." It is commonly used to indicate location or position, as in "nai khong" (ในของ), meaning "inside of." The term can also be used in various contexts to denote being within something, whether physical or abstract.
Kun yuu tee nai (In English)คุณ อยู่ที่ไหน (In Thai)
Hawng Nam You Nai
It means I wish you a happy birthday in thai...
Formal: Khun you nai? or Khun you teenai? Informal: Tuuh you nai? or Tuuh you teenai? คุณ - khun - you (formal) เธอ - tuuh - you (informal, feminine) (ที่)ไหน - (tee)nai - where คุณอยู่(ที่)ไหน - khun you (tee) nai - where are you เธออยู่(ที่)ไหน - tuuh you (tee) nai - where are you
beef yoo tee nai
khun yoo tee nai krub
McDonalds yu tee nai krub? -for guy McDonalds yu tee nai ka? - for girl
The cast of Muay thai - Nai khanom tom - 2003 includes: Darm Dudsakorn Yodchay Meksuwan Boonthida Nakajareon Panutat Rattanatrai as Nai Khanomtom Kusin Singhatummasan Shinta Sitthikul
ruk tee tae jing nai muang thai
khun mii chiii wit tii nai
You can say "คุณเรียนที่ไหน" (khun rian tee nai) to ask someone where they study in Thai language.
You will have to say( in karaoke) "Chan yuu mueng thai" ฉันอยู่เมืองไทย