Frequency - Word Form
  1 ultimatum
  1 unbearable
  1 unclear
  1 under
  2 understand
  1 understanding
  1 understood
  1 underwear
  1 unison
  1 unkempt
  1 unknown
  1 unnoticed
  4 until
  1 unusual
 17 up
  1 upon
  2 upper
  7 us
  2 used
  1 uttered
  1 utterly