forget to do something
the act of worrying about many things
a note from one person or office to another within a firm or organization; memorandum
ふと考えること
the act of a person immediately forgetting what they hear
忘れ物をすること
the condition of not forgetting something once heard
to feel hesitant as a result of thinking about general subjects
One is apt to forget his own faults.
the circumstance of forgetting soon what one has been told