Japanese phrase
___に参加していただけませんか？ ___ ni san ka shi te i ta da ke ma se n ka
Meaning
Could you take part in ___?
When to use it
Politely asks whether someone can join an event or activity.
Example dialogue
歓迎会に参加していただけませんか？ kan gei kai ni san ka shi te i ta da ke ma se n ka
Could you take part in the welcome party?
はい、ぜひ参加します。 ha i ze hi san ka shi ma su
Yes, I would be happy to.