もう済んだ

already finished

→ もう
phrase Rare #23,890
already finished Used when something has already been completed or is already over. In もう済んだこと, it means that something is in the past and settled.
JA: 宿題はもう済んだよ。
EN: The homework is already finished.

もう済んだことだ

It's water under the bridge.

もう済んだ

It's already done.

— コーカサスの虜 (1996)

ああでももう済んだんだ

Ah, but it's already done.

— AKIRA (1988)

もう済んだことです

It's all in the past now.

もう済んだだろ

It's already over and done with, isn't it?

— ブエノスアイレス (1997)

おやもう済んだ

Oh, you're done already?