Usage patterns
イベントを開催するto hold an event
We're planning to hold a big event in front of the station next month.
イベントに参加するto take part in an event
I took part in a volunteer event for the first time.
イベントを企画するto plan/organize an event
She's good at planning local events.
イベントが行われるfor an event to be held/take place
A music event takes place in this park every summer.