The word(s) "perpetual" appears 8 time(s) in 8 verse(s) in Quran in Abdullah Yusuf Ali translation.

(1) Gardens of perpetual bliss: they shall enter there, as well as the righteous among their fathers, their spouses, and their offspring: and angels shall enter unto them from every gate (with the salutation):

(2) The parable of the Garden which the righteous are promised!- beneath it flow rivers: perpetual is the enjoyment thereof and the shade therein: such is the end of the Righteous; and the end of Unbelievers in the Fire.

(3) Say: See ye? If Allah were to make the night perpetual over you to the Day of Judgment, what god is there other than Allah, who can give you enlightenment? Will ye not then hearken?

(4) Say: See ye? If Allah were to make the day perpetual over you to the Day of Judgment, what god is there other than Allah, who can give you a night in which ye can rest? Will ye not then see?

(5) Repulsed, for they are under a perpetual penalty,

(6) And the Thamud nor gave them a lease of perpetual life.

(7) Round about them will (serve) youths of perpetual (freshness),

(8) And round about them will (serve) youths of perpetual (freshness): If thou seest them, thou wouldst think them scattered Pearls.