The word(s) "forever" appears 50 time(s) in 50 verse(s) in Quran in Mohsin Khan translation.

(21) And those who have earned evil deeds, the recompense of an evil deed is the like thereof, and humiliating disgrace will cover them (their faces). No defender will they have from Allah. Their faces will be covered as it were with pieces from the darkness of night. They are the dwellers of the Fire, they will abide therein forever.

(22) Verily, those who believe (in the Oneness of Allah - Islamic Monotheism) and do righteous good deeds, and humble themselves (in repentance and obedience) before their Lord, they will be dwellers of Paradise to dwell therein forever.

(23) "Wherein they shall dwell (forever). No desire will they have for removal therefrom."

(24) 'Adn (Eden) Paradise (everlasting Gardens), under which rivers flow, wherein they will abide forever: such is the reward of those who purify themselves (by abstaining from all kinds of sins and evil deeds which Allah has forbidden and by doing all that Allah has ordained).

(25) And We granted not to any human being immortality before you (O Muhammad صلى الله عليه وسلم): then if you die, would they live forever?

(26) Who shall inherit the Firdaus (Paradise). They shall dwell therein forever.

(27) And those who accuse chaste women, and produce not four witnesses, flog them with eighty stripes, and reject their testimony forever. They indeed are the Fasiqun (liars, rebellious, disobedient to Allah).

(28) Allah forbids you from it and warns you not to repeat the like of it forever, if you are believers.

(29) The only saying of the faithful believers, when they are called to Allah (His Words, the Qur'an) and His Messenger (صلى الله عليه وسلم), to judge between them, is that they say: "We hear and we obey." And such are the successful (who will live forever in Paradise).

(30) For them there will be therein all that they desire, and they will abide (there forever). It is a promise binding upon your Lord that must be fulfilled.