The word(s) "forget" appears 26 time(s) in 23 verse(s) in Quran in Mohsin Khan translation.

(11) And we (angels) descend not except by the Command of your Lord (O Muhammad صلى الله عليه وسلم). To Him belongs what is before us and what is behind us, and what is between those two; and your Lord is never forgetful -

(12) [Musa (Moses)] said: "The knowledge thereof is with my Lord, in a Record. My Lord neither errs nor He forgets."

(13) The Day you shall see it, every nursing mother will forget her nursling, and every pregnant one will drop her load, and you shall see mankind as in a drunken state, yet they will not be drunken, but severe will be the Torment of Allah.

(14) But you took them for a laughing stock, so much so that they made you forget My Remembrance while you used to laugh at them!

(15) "But seek, with that (wealth) which Allah has bestowed on you, the home of the Hereafter, and forget not your portion of lawful enjoyment in this world; and do good as Allah has been good to you, and seek not mischief in the land. Verily, Allah likes not the Mufsidun (those who commit great crimes and sins, oppressors, tyrants, mischief-makers, corrupters)."

(16) Then taste you (the torment of the Fire) because of your forgetting the Meeting of this Day of yours. Surely We too will forget you: so taste you the abiding torment for what you used to do.

(17) And he puts forth for Us a parable, and forgets his own creation. He says: "Who will give life to these bones after they are rotten and have become dust?"

(18) And when some hurt touches man, he cries to his Lord (Allah Alone), turning to Him in repentance. But when He bestows a favour upon him from Himself, he forgets that for which he cried for before, and he sets up rivals to Allah, in order to mislead others from His Path. Say: "Take pleasure in your disbelief for a while: surely you are (one) of the dwellers of the Fire!"

(19) Or say they: "He has invented a lie against Allah?" If Allah willed, He could have sealed up your heart (so that you forget all that you know of the Qur'an). And Allah wipes out falsehood, and establishes the truth (Islam) by His Word (this Qur'an). Verily, He knows well what (secrets) are in the breasts (of mankind).

(20) And it will be said: "This Day We will forget you as you forgot the Meeting of this Day of yours. And your abode is the Fire, and there is none to help you."