The word(s) "forget" appears 25 time(s) in 24 verse(s) in Quran in Abdullah Yusuf Ali translation.

(21) When some trouble toucheth man, he crieth unto his Lord, turning to Him in repentance: but when He bestoweth a favour upon him as from Himself, (man) doth forget what he cried and prayed for before, and he doth set up rivals unto Allah, thus misleading others from Allah's Path. Say, "Enjoy thy blasphemy for a little while: verily thou art (one) of the Companions of the Fire!"

(22) It will also be said: "This Day We will forget you as ye forgot the meeting of this Day of yours! and your abode is the Fire, and no helpers have ye!

(23) And be ye not like those who forgot Allah; and He made them forget their own souls! Such are the rebellious transgressors!

(24) By degrees shall We teach thee to declare (the Message), so thou shalt not forget,