Korean sentences have spaces and punctuation just as English sentences do. If they did not have any punctuation or spaces, it might take several days for foreigners to understand a written page. Basically, there must be a space between two words and every sentence must be finished with punctuation. However, some lexical items, like case markers, must be attached to words.

  아버지     가방에   들어가십니다.
      father   into the bag is getting in
    My father is getting into the bag.
방에   들어가십니다.
      father into the room is going in
    My father is going into the room.
punctuation and spacing
basic sentence type