The word(s) "forget" appears 26 time(s) in 26 verse(s) in Quran in Muhammad Pickthal translation.

(21) So taste (the evil of your deeds). Forasmuch as ye forgot the meeting of this your day, lo! We forget you. Taste the doom of immortality because of what ye used to do.

(22) And when some hurt toucheth man, he crieth unto his Lord, turning unto Him (repentant). Then, when He granteth him a boon from Him he forgetteth that for which he cried unto Him before, and setteth up rivals to Allah that he may beguile (men) from his way. Say (O Muhammad, unto such an one): Take pleasure in thy disbelief a while. Lo! thou art of the owners of the Fire.

(23) And it will be said: This day We forget you, even as ye forgot the meeting of this your day; and your habitation is the Fire, and there is none to help you.

(24) The devil hath engrossed them and so hath caused them to forget remembrance of Allah. They are the devil's party. Lo! is it not the devil's party who will be the losers?

(25) And be not ye as those who forgot Allah, therefor He caused them to forget their souls. Such are the evil-doers.

(26) We shall make thee read (O Muhammad) so that thou shalt not forget