The particle of time "-fu-" is commonly used together with the particle "-em" to mark sorrow.
Cucu = grandmother (mother's mother)
Ñi cucuem = my grandmother (who passed away)
When the modified word ends in "-e" the semivowel "-y-" is added for euphonic reasons.
Ñuke = mother
Ñi ñukeyem = his mother (who passed away)
Sometimes it used to express sympathy:
Kuralge = eye
Agkvrkefuy ñi kuralgeyem = His poor eyes dried up (long time ago) !! (to mean "he lost his sight")
Note: the verb "agkvn" /aŋ'kən/ means "to dry up". Notice the use of the middle particle "-rke-" marks a story or account. It is also used to express surprise or wonder.