不会再发生了

won’t happen again

→ 不
phrase Rare #31,542
won’t happen again Often used as a reassurance or promise that something will not happen again.
CH: 别担心,这种事不会再发生了。
EN: Don’t worry, this won’t happen again.

这种事不会再发生了

This will never happen again.

— 白丝带 (2009)

这种事反正不会再发生了

In any case, this won't happen again.

— 浪潮 (2008)

不会再发生了

It won't happen again.

— 蔷花,红莲 (2003)

这永远不会再发生了。

This will never happen again.