Explanation
Indicates that something has been decided or arranged; 'it has been decided that', 'it turns out that'.
Formation
Verb-る + ことになる
Detailed explanation
The る ことになる grammar point is used to express that something has been decided or arranged. It often indicates a decision made by someone else or due to circumstances. It can be translated as 'it has been decided that' or 'it turns out that' in English. The formation requires a verb in る (dictionary) form.
Examples
Kyou wa kaigi ga nakunaru koto ni narimashita.
It has been decided that there will be no meeting today.
Raishuu, tomodachi to ryokou suru koto ni natta.
It has been arranged that I will travel with my friends next week.
Kanojo ga kondo no purojekuto no riida ni naru koto ni narimashita.
It has been decided that she will be the leader of the next project.
Kyuu ni shigoto ga haitta node, yasumi wo toru koto ni natta.
Due to sudden work, it has been decided that I will take a day off.
Practice
Grammar content sourced from hanabira.org.