یاد رفتن

Etymology
From.

Verb

 * 1)  to forget

Usage notes
As in the examples above, the construction is impersonal and literally means "[one's] memory goes". What in English would be the subject of "to forget" is introduced with a pronominal enclitic attached to to mark the possessor of the memory.

Conjugation
(for "I forgot")

(for "you forgot")

(for "he forgot" or "she forgot")

(for "we forgot")

(for "you (pl) forgot")

(for "they forgot")