事がある
  ことがある
  Expressions (phrases, clauses, etc.)
  Godan verb with `ru' ending (irregular verb)
  word usually written using kana alone
  [after the past tense form of a verb]
  (something) has occurred
  to have done (something)
  such a thing happened
  word usually written using kana alone
  (something) happens on occasions
  there are times when
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