事になる

result in; turn out badly; lead to a certain outcome

→ 事
phrase Uncommon #8,133
result in; turn out badly; lead to a certain outcome Depending on context, 事になる can describe an inevitable result, an arrangement or decision, or a situation that turns out a certain way. It is often written in hiragana as ことになる, but 事になる is also used, especially in more formal or literary writing.
JA: 早く言い訳を考えないとまずい事になる。
EN: If I don’t think of an excuse quickly, things will turn out badly.

早く言い訳を考えないまずい事になる

I need to come up with an excuse quickly, or things will get bad.

大変な事になる

Things will get serious.

黒人信じていない事になるアラー守りがあるだが武器守り必要だ

There is Allah’s protection, but protection from weapons is necessary too.

— マルコムX (1992)

マズい事になる

This could end badly.

— Good Luck, Have Fun, Don't Die (2026)

まずい事になる

This could lead to trouble.

— いまを生きる (1989)

無し考えるのを止めたらもっとひどい事になるだろ

Things would probably get even worse if an incompetent person stopped thinking.

— 預言者 (2009)

見つかったら大変な事になる

If they find out, we’ll be in big trouble.

— いまを生きる (1989)

誰もが知る事になる

Everyone will find out.

— ニュー・シネマ・パラダイス (1988)

あそこに入る事になるなんてとても着けるとは思えません

I never thought I’d end up going in there—I didn’t think I’d ever make it.

— ロード・オブ・ザ・リング/二つの塔 (2002)

いつも一人で孤独だし同じフィルムうんざりするほど観る事になる

I'm always alone and lonely, and I end up watching the same film over and over until I'm sick of it.

— ニュー・シネマ・パラダイス (1988)