Text this: Tag questions in English: linguistic features and possible padagogical implications

   _____    _____     ______    ______    ____    
  / ___//  |  ___||  /_   _//  /_   _//  |  _ \\  
  \___ \\  | ||__    `-| |,-    -| ||-   | |_| || 
  /    //  | ||__      | ||     _| ||_   | .  //  
 /____//   |_____||    |_||    /_____//  |_|\_\\  
`-----`    `-----`     `-`'    `-----`   `-` --`