N4 grammar
〜ことになる
kotoninaru
It has been decided
Formationdictionary or ない form + ことになる
ことになる says an arrangement has come about, without pointing at who arranged it. Japanese reaches for it constantly, even where the speaker plainly did decide, because it sounds less self-important. Treat it as the polite way to report an outcome.
Examples
〜ことになる is marked in each sentence. Tap any word for its dictionary entry.
近日中に彼女にまた会うことになっている。
I will be seeing her again one of these days.
私達は9時に駅でおちあうことになっている。
We are to meet at the station at nine.
両親に知れたら面倒なことになるよ。
You'll get into trouble if your parents find out.
翌日は家に戻ることになっていた。
I should be back home the next day.
私は今夜子供たちの子守りをすることになっています。
I am supposed to babysit the children tonight.