How do you say speaking aloud in Russian?

This is how you pronounce it: Vy ga-va-REE-tее pa-ROOS-ski?

This is how to write it using English letters: Vy govorite po-russki?

And in Russian: Вы говорите по-русски?

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Ты говоришь по-русски - ty govorish' po russki. To a child or someone you know well.

Вы говорите по-русски. - Vy govorite po russki. To someone you don't know at all or very well, is older, teachers, respectable people. Formal situations.

Just add a question mark to make it into a question.
ah vih gavareetye pah rooskee?

*If you don't know whether the person speaks Russian, you probably don't know them well enough to use the informal version of "you." Which is why I changed it to the formal version.