忘れる

忘れる

To forget.

In this sentence, "忘れる" is used to indicate failing to retain a piece of specific information in memory.

私は彼の電話番号を忘れました。

I forgot his phone number.

Here, "忘れる" is used to emphasize the proactive act of remembering something to do or bring.

出かける前に傘を持っていくのを忘れないでください。

Don't forget to bring your umbrella before going out.

In this context, "忘れる" reflects the certainty of holding a specific memory and not losing it.

彼女の誕生日を忘れるはずがない。

There's no way I would forget her birthday.