How do you say may i speak to in Chinese?

There are a few ways to say "May I speak to..." in Chinese, depending on the formality and context:

Formal:

* 请问 (qǐng wèn) ... 在吗? (zài ma?) - This is the most common and polite way to ask if someone is available. It literally translates to "May I ask... is [person's name] available?"

* 我想 (wǒ xiǎng) 和 (hé) ... 说话 (shuō huà). - This translates to "I want to speak with...". It's slightly less formal than the previous option.

Informal:

* 找 (zhǎo) ... (person's name) - This means "Looking for...". It's very informal and can be used with friends or family.

Example:

* 请问 (qǐng wèn) 张先生 (zhāng xiānsheng) 在吗? (zài ma?) - May I speak to Mr. Zhang?

You can replace the name with any name or title you want to speak to.