Formal:
* Mo fẹ́ èdè Yorùbá: (Mo fe ede Yoruba) - This is the most formal way to say it, literally translating to "I love the Yoruba language".
Informal:
* Mo fẹ́ Yorùbá: (Mo fe Yoruba) - This is more informal, simply stating "I like Yoruba".
* Mo nifẹ́ Yorùbá: (Mo nifẹ Yoruba) - This is another informal option, meaning "I like Yoruba".
* Mọ́ rí Yorùbá: (Mo ri Yoruba) - This is even more casual, meaning "I like Yoruba".
Contextual:
You can also say it in a way that emphasizes why you like Yoruba:
* Mọ́ rí bí Yorùbá ti ṣe tán: (Mo ri bi Yoruba ti se tan) - "I like how Yoruba sounds".
* Mọ́ rí bí Yorùbá ti jẹ́ èdè tí ó dára: (Mo ri bi Yoruba ti je ede ti o dara) - "I like that Yoruba is a beautiful language".
The best choice for you will depend on the context of your conversation.