過すぎたこと

expression, noun

past events; bygones; water under the bridge

Refers to things that have already happened and are now in the past; often used in expressions about letting go or not dwelling on the past.

• 過すぎたことは仕し方かたがない。

  What's done is done; there's no use crying over spilled milk.

• 過すぎたことをいつまでも悔くやんでも仕し方かたがないよ。

  There's no point in regretting the past forever.