notes

• 「０が結婚することにした。」 means “It became the thing of getting married.”
  • “It” refers to the situation or circumstance
  • other-move implies volition
  • need 「こと」 after 「結婚する」 because logical particles only attach to nouns
• 「フランスで留学することになった。」 means “It became the thing of studying abroad in France.”
  • self-move implies the decision was made outside
• 「ことになる」 does not always imply a decision (ex: 「大変なことになった。」)

  resources

• youtube