1. 什么 (shénme): This is the most common way to say "what" in Chinese. It's used to ask a question about an unknown object, person, place, or idea.
2. 啥 (shá): This is a more casual and informal way of saying "what" and is often used in spoken language.
3. 哪 (nǎ): This is used to ask which one or which thing, and can also mean "where."
4. 怎 (zěn): This is used in conjunction with other words to ask "how" or "why," and can sometimes translate to "what" in certain situations.
5. 甚么 (shèn me): This is an older, more formal way of saying "what" and is rarely used in modern Chinese.
The best way to spell "what" in Chinese depends on the specific context of your sentence.