representative

I choose one.

私は選びます

I choose a representative.

私は代表者を選びます

I choose a representative at the general meeting.

私は総会で代表者を選びます

I choose a representative at next week's general meeting.

私は来週の総会で代表者を選びます

I choose a representative with the union members at next week's general meeting.

私は組合員たちと来週の総会で代表者を選びます