きれいでした

was beautiful

→ 奇麗だ
phrase Rare #42,799
was beautiful きれい can also mean “clean,” depending on context.
JA: 庭はとてもきれいでした。
EN: The garden was very beautiful.

今までで一番きれいでした

It was the most beautiful thing I’d ever seen.

— Departures (2008)

きれいでした

It was beautiful.

— 別れる決心 (2022)

この町は昔きれいでした。

This town used to be beautiful.

どの村もきれいでしたよ。

Every village was beautiful.