• Modals of necessity and obligation
     Help
  • You _________ tell anyone what I just told you. It's a secret.
    mustn't
  • The museum is free. You _________ pay to get in.
    don't have to
  • John's a millionaire. He ________ go to work.
    doesn't have to
  • Unlock this slideshow and over 3 million more with Baamboozle+
    Try slideshows
  • Your experience on this site will be improved by allowing cookies.