to be forgotten―pass out of mind―pass out of one's memory―fade from one's memory―escape one's memory―slip one's memory―fall into oblivion―be buried in oblivion
消し忘れ
忘れる.
事な忘れそ
to forget oneself―lose oneself (in admiration)―be lost (in admiration)―be absorbed (in study)―be engrossed (in one's business)―be beside oneself (with joy or grief)
to carelessly forget to say something
to forget something
お忘れなく
We forgot.
ゆめ忘るな
忘れましょう!
忘れられている.
忘れないでよ。
忘れちまえ!