How do you say can speak Russian in Russian?

There are a few ways to say "I can speak Russian" in Russian, depending on the context and level of formality:

Formal:

* Я говорю по-русски. (Ya govorju po-russki.) - This is the most common and formal way to say it.

* Я владею русским языком. (Ya vladeju russkim yazykom.) - This means "I am proficient in the Russian language."

Informal:

* Я могу говорить по-русски. (Ya mogu govorit' po-russki.) - This means "I can speak Russian."

* Я знаю русский язык. (Ya znaju russkij yazyk.) - This means "I know the Russian language."

Note: The preposition "по" (po) means "in" and is used before languages when speaking about them.

You can also add the word "немного" (немного) (a little bit) to express a lower level of fluency:

* Я немного говорю по-русски. (Ya nemnoho govorju po-russki.) - This means "I speak Russian a little bit."