Formal:
* Mo fẹ́ pè ọ́ sí ìgbà ìjẹ́un alẹ́: (Mo fe pe o si igbà ijeun alẹ) This is the most literal and formal way to say it. It means "I would like to invite you to dinner."
Informal:
* Mo fẹ́ pè ọ́ láti jẹun alẹ́ pẹ̀lú mi: (Mo fe pe o lati jeun alẹ pelu mi) This means "I would like to invite you to eat dinner with me."
* Ṣé o lè wá jẹun alẹ́ pẹ̀lú mi?: (Se o le wa jeun alẹ pelu mi?) This is a more direct invitation, asking "Can you come eat dinner with me?"
Adding politeness:
* You can add "jọ̀wọ́" (jowọ) to any of the above phrases, meaning "please," to make it more polite. For example: "Mo fẹ́ pè ọ́ sí ìgbà ìjẹ́un alẹ́ jọ̀wọ́."
Example of using it in a conversation:
Friend: "Bó ti wù kí ó rí, mo ní láti lọ sí ilé." (Bo ti wu ki o ri, mo ni lati lo si ile) - "Anyway, I have to go home."
You: "Ṣé o lè wá jẹun alẹ́ pẹ̀lú mi jọ̀wọ́?" (Se o le wa jeun alẹ pelu mi jowọ?) - "Can you come eat dinner with me please?"
Remember to consider the context and your relationship with the person you are inviting when choosing the most appropriate phrase.