This study aims to find out about language errors that occur in an Arabic textbooks entitled Duru>s al-Lughah al-‘Ara>biyah ‘ala Thariqati al-Muba>syarah al-Mutaka>milah of Muhammad In'am, M.A. Not only the errors that were discussed but there was an attempt or Tashwib or correction in order to evaluate the results of the analysis that has been done. Library research was used with qua…