昔は昔、今は今

むかしはむかし、いまはいまmukashihamukashi、imahaima

expression

  1. let bygones be bygones
  2. the past is the past, the present is the present

Kanji in this word

Study it in Yanamino

Data from JMdict, KANJIDIC2 (EDRDG), KanjiVG, CC-CEDICT and Make Me a Hanzi. Sources and licences