〜ことになる

Pattern
〜ことになる
Level
N3
Reading
〜ことになる indicates that a decision was reached by external factors, rules, or a group decision, rather than purely the speaker's own will. It attaches to the dictionary or negative form of verbs (e.g. 帰ることになる, 帰らないことになる). It contrasts with 〜ことにする, which highlights personal agency. level: N4, nuance: objective, formal.
Meaning
it has been decided that, to end up doing
Example

来月から東京の本社で働くことになりました。 It has been decided that I will work at the Tokyo headquarters starting next month.

More from Grammar Points