***Frequenza*** - ***Forma***
   7 unable
   1 unavoidable
   1 unbecoming
   1 unchangeable
   2 uncle
   1 unconsciously
   1 undamaged
  12 under
   6 understand
   2 understanding
   1 understands
   2 understood
   1 underwent
   1 undisguised
   1 unduly
   1 uneasiness
   1 unequal
   1 unerring
   1 unexamined
   2 unexpected
   1 unfair
   1 unfinished
   1 unheeded
   1 unintelligible
   1 union
   1 unite
   4 unity
   2 universal
   2 university
   2 unknown
   1 unlearned
   4 unless
   2 unlike
   2 unmeaning
   1 unmistakable
   1 unpleasant
   1 unquiet
   1 unsupported
   5 until
   1 unwilling
   2 unworthy
   8 up
  11 upon
   1 upwards
  42 us
   1 usage
  27 use
   5 used
   1 useful
   1 usefully
   1 useless
   1 uses
   1 using
   1 utilitarianism
   1 utility
   1 utitur
   1 uttered
   1 utterly