own

  • We only use own after a possessive word.
      It’s nice if a child can have his own room.
      I’m my own boss.
  • Note the structure a … of one’s own.
      It’s nice if a child can have a room of his own.
      I ‘d like to have a car of my own.
  • We can use own without a following noun.
      ‘Would you like one of my cigarettes?’ ‘No thanks. I prefer my own.’