How do you say speak Mandarin in Mandarin?

There are a few ways to say "speak Mandarin" in Mandarin, depending on the context and level of formality. Here are some options:

Formal:

* 说普通话 (shuō pǔtōnghuà): This is the most common and formal way to say "speak Mandarin." It literally translates to "speak common language," as Mandarin is the official language of China.

* 讲普通话 (jiǎng pǔtōnghuà): This is another formal way to say "speak Mandarin," similar in meaning to "shuō pǔtōnghuà."

Informal:

* 说中文 (shuō zhōngwén): This means "speak Chinese" and is more informal than "shuō pǔtōnghuà." It's acceptable in everyday conversations.

* 会说中文 (huì shuō zhōngwén): This means "can speak Chinese" and is also more informal than "shuō pǔtōnghuà."

Asking someone if they speak Mandarin:

* 你会说普通话吗？(nǐ huì shuō pǔtōnghuà ma?): This translates to "Do you speak Mandarin?" and is a polite way to ask.

* 你会讲普通话吗？(nǐ huì jiǎng pǔtōnghuà ma?): This is another polite way to ask, meaning "Do you speak Mandarin?"

The choice of which phrase to use depends on the situation and the person you're speaking to. In most cases, "shuō pǔtōnghuà" is the safest option.