Translation guide
How to express that you forgot to say something, in natural Japanese.
The speaker realizes they forgot to mention something in conversation and wants to add it now.
A common, natural way to say 'I forgot to mention' in casual conversation.
Oh, I forgot to mention, tomorrow's meeting is in the afternoon.
Literally 'forgot to say'. Slightly more explicit than 言い忘れた.
I forgot to say something important.
Means 'forgot to add (a point)'. Used when you want to add supplementary information.
I forgot to add one more thing.
The speaker wants to politely interject with something they forgot to mention, often in a business or formal setting.
A polite phrase meaning 'I apologize for the delay in mentioning this'. Used in formal contexts.
I apologize for not mentioning earlier, I am Tanaka.
Humble form of 言い忘れた. Suitable for formal emails or business conversations.
Describing that someone forgot to mention something in a past situation, often in storytelling.
Past progressive form, indicating 'had forgotten to mention'.
He realized he had forgotten to mention something important.
Both mean 'forgot to say', but 言い忘れた is a compound verb and sounds more natural in casual speech. 言うのを忘れた is slightly more explicit and can be used when emphasizing the act of forgetting to say something specific.
I forgot to mention, tomorrow is a holiday.
I forgot to tell him about that.
Regarding the earlier matter, there is one thing I forgot to mention.