How do you say Do speak Yoruba in Yoruba?

There are a couple of ways to say "Do you speak Yoruba?" in Yoruba, depending on the level of formality and the context:

Formal:

* Ṣé o mọ̀ Yorùbá? (She o mo Yoruba?) - This is the most formal way to ask. It literally translates to "Do you know Yoruba?" but is understood as asking about speaking ability.

Informal:

* O mọ̀ Yorùbá bí? (O mo Yoruba bi?) - This is a more casual way to ask, literally translating to "Do you know Yoruba like this?"

Even more informal:

* O gbọ́ Yorùbá? (O gbo Yoruba?) - This is the most casual way to ask, literally translating to "Do you understand Yoruba?"

Using the verb "sọ" (to speak):

You could also use the verb "sọ" (to speak) in your question, although it's less common:

* Ṣé o sọ Yorùbá? (She o so Yoruba?) - "Do you speak Yoruba?"

Note: The tone and intonation will also play a role in how formal or informal your question sounds.