Read your favorite tragedies and learn from their style and technique. Make notes of elements that you find in the stories and ask yourself if that is something you wish to include. Select a style of tragedy that best fits the story you wish to tell. For instance, you may decide to use the Shakespearean style, popularized by "Hamlet" and "Othello."
Explore the style elements and tragic features of the genre you chose, making note of the specific elements that you will have to include to fit the genre. As an example, your Shakespearean tragedy will need a situation where your main character must act against her morality to do what she thinks is right, suffer for her immorality with death and determine if her quest is just by the death of her enemies. Your main character will also need a tragic flaw, a consuming pride that drives your character through your plot and eventually leads to her downfall.
Plan your tragedy by outlining, from section to section, how your plot will develop through your story. Decide whether you will write a story, play or poem. Design your outline around the style of tragedy you intend to write by framing it in acts and scenes for a play, chapters if it is a book or sections for a poem. Read through your outline and make sure that all of your plot lines move towards a conclusion during your tragedy.
Write your tragedy by following your outline and making sure to include each plot twist, character building point and enough description to explain the events of your story. Design your transitions between sections, chapters or scenes to keep your story moving smoothly and ensure that your readers can follow the action from the beginning to your conclusion.
Read your tragedy, focusing on how you tell your story and the grammar you use. Ask yourself if the events unfold purposefully in your story or if you need to revise any points to better explain why your characters make the decisions that they make. Revise your story and prepare it to become a final copy by correcting any errors you find and paying close attention to how you tell your story.