Formal:
* Kí ó báà jẹ́ pé ẹ̀dà Yorùbá rẹ̀ dára: This is a grammatically correct and formal way to say it.
* Kí ó báà jẹ́ pé Yorùbá rẹ̀ ló dáa: This is similar to the first option, but slightly less formal.
Informal:
* Báà jẹ́ pé Yorùbá rẹ̀ gbójú: This is a more casual way to say it, literally meaning "If your Yoruba is good."
* Tí Yorùbá rẹ̀ bá dára: This is another informal option, using the "tí" conjunction for "if."
* Kí Yorùbá rẹ̀ bá dáa: This is a more informal option with a similar meaning to the first option, but it's not as grammatically correct as the other options.
The best way to translate the phrase will depend on the specific context and desired level of formality.
Please note: Yoruba is a tonal language, so the intonation of these phrases is important. It's best to consult a native speaker for pronunciation.