* "Nǐ hǎo" - This is the most common and widely recognized way to say "hello" in Mandarin Chinese.
* "Nín hǎo" - This is a more formal way to say "hello" in Mandarin Chinese, used when addressing someone older or of higher social status.
* "Nei hou" - This is a Cantonese pronunciation of "你好".
* "Hoi" - This is a short and informal greeting in Cantonese, similar to "Hi" in English.
It's important to note that these are just approximations of the Chinese pronunciation using English letters. The actual sounds might be slightly different.