置おき忘わすれる

ichidan verb, transitive verb

leave behind; misplace; forget

Used when you put something somewhere and then forget to take it with you, or forget where you put it. The focus is on the act of leaving it unintentionally.

• 電でん車しゃに傘かさを置おき忘わすれてしまった。

  I left my umbrella on the train.

• どこに置おき忘わすれたのか、鍵かぎが見みつからない。

  I can't find my keys; I must have misplaced them somewhere.