How to say "Which bag is yours?" in Chinese?

 There are several ways to say "Which bag is yours?" in Chinese, depending on the nuance you want to convey. Here are a few common options:

Formal/Standard:

• 哪个包是你的？ (Nǎ ge bāo shì nǐ de?) - This is the most common and straightforward translation.

Informal/Conversational:

• 哪个包是你的啊？ (Nǎ ge bāo shì nǐ de a?) - Adding "啊 (a)" at the end makes it sound more casual and friendly.
• 哪个包是你的？ (Nǎ ge bāo shì nǐ de?) - The same as the formal version, but the tone of voice will make it informal.
• 你的包是哪个？ (Nǐ de bāo shì nǎ ge?) - This literally translates to "Your bag is which one?" and is perfectly acceptable in spoken Chinese.

More Specific (if there are many bags):

• 你的是哪个包？ (Nǐ de shì nǎ ge bāo?) - This emphasizes "yours" and is useful when there are many bags to choose from.

Pinyin Breakdown:

• 哪个 (nǎ ge) - which
• 包 (bāo) - bag
• 是 (shì) - is/are
• 你的 (nǐ de) - yours
• 啊(a) - a modal particle.

Therefore, the most common and generally useful way to ask the question is: 哪个包是你的？ (Nǎ ge bāo shì nǐ de?)