Japanese phrase
___に参加する必要がありますか？ ___ ni san ka su ru hitsu yō ga a ri ma su ka
Meaning
Is it necessary for me to attend ___?
When to use it
Asks if attending an event is necessary. It politely checks whether attendance is required before making plans.
Example dialogue
説明会に参加する必要がありますか？ setsu mei kai ni san ka su ru hitsu yō ga a ri ma su ka
Is it necessary for me to attend the information session?
いいえ、任意です。 i i e nin i de su
No, it is optional.