我を忘れること
the action of forgetting oneself
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)
忘却すること
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
忘れる.
to carelessly forget to say something
ゆめ忘るな
消し忘れ
He is beside himself with joy.
忘れっぽくなる.
思い出さずに
Be ever present to your mind
忘れちまえ!