事ことにする事にする表記・読み:ことにする1to decide toexpressions (phrases, clauses, etc.)suru verb - includedword usually written using kana alone2to pretend thatexpressions (phrases, clauses, etc.)suru verb - includedafter the past tense form of a verbword usually written using kana alone3to make a practice of doing; to make it a rule toexpressions (phrases, clauses, etc.)suru verb - includedas 〜ことにしているword usually written using kana alone札へ残す語をコピー