たことになる
It ends up meaning that / it is regarded as having done → expresses a resulting interpretation or conclusion, often not intended by the subject
N1
Meaning
It ends up meaning that / it is regarded as having done → expresses a resulting interpretation or conclusion, often not intended by the subject
Formation
Verb (た-form) + ことになる
Explanation
たことになる is used when, because of circumstances, rules, or interpretation, something is considered to have happened, regardless of intent.
🔸 たことになる = interpretation, not choice
Key idea:
👉 “In effect, it counts as having done this.”
Important nuances:
The result is often:
indirect
unintended
imposed by rules or logic
The subject may not have decided this outcome
Very common in:
formal explanations
administrative language
JLPT N1 reading passages