I forgot: "se me olvidó"
Is the "se", here reflexive, or does it translate to "I know"?
2 Answers
Se me olvidó = I forgot (implies it was accidental)
What happens if you say "Yo olvidé"? Do you basically say "I forgot on purpose"?
In Spanish, it is typical to use this type of construction when you wish to "lighten" the meaning of the phrase in order to avoid blame. What this literally means is, "it forgot itself on me," which is to say that the speaker accidentally has forgotten whatever "it" is. So yes, the "se" is reflexive.