event

I attend the event.

私は行事に出席します

I attend the event for the first time.

私は初めて行事に出席します

I attend the event at the city hall for the first time.

私は市役所で初めて行事に出席します

I attend the event at the city hall next week for the first time.

私は来週市役所で初めて行事に出席します

I attend the event with my senior at the city hall next week for the first time.

私は先輩と来週市役所で初めて行事に出席します