The word(s) "not" appears 2535 time(s) in 1947 verse(s) in Quran in Mohsin Khan translation.

(881) And nothing prevented men from believing when the guidance came to them, except that they said: "Has Allah sent a man as (His) Messenger?"

(882) See they not that Allah, Who created the heavens and the earth, is Able to create the like of them. And He has decreed for them an appointed term, whereof there is no doubt. But the Zalimun (polytheists and wrong-doers) refuse (the truth - the Message of Islamic Monotheism, and accept nothing) but disbelief.

(883) And with truth We have sent it down (i.e. the Qur'an), and with truth it has descended. And We have sent you (O Muhammad صلى الله عليه و سلم) as nothing but a bearer of glad tidings (of Paradise for those who follow your Message of Islamic Monotheism), and a warner (of Hell-fire for those who refuse to follow your Message of Islamic Monotheism) .

(884) Say (O Muhammad صلى الله عليه و سلم to them): "Believe in it (the Qur'an) or do not believe (in it). Verily those who were given knowledge before it (the Jews and the Christians like 'Abdullah bin Salam and Salman Al-Farisi), when it is recited to them, fall down on their faces in humble prostration."

(885) And say: "All the praises and thanks be to Allah, Who has not begotten a son (or offspring), and Who has no partner in (His) Dominion, nor He is low to have a Wali (helper, protector or supporter). And magnify Him with all magnificence, [Allahu-Akbar (Allah is the Most Great)]."

(886) All the praises and thanks be to Allah, Who has sent down to His slave (Muhammad صلى الله عليه وسلم) the Book (the Qur'an), and has not placed therein any crookedness.

(887) (He has made it) straight to give warning (to the disbelievers) of a severe punishment from Him, and to give glad tidings to the believers (in the Oneness of Allah - Islamic Monotheism), who do righteous deeds, that they shall have a fair reward (i.e. Paradise).

(888) No knowledge have they of such a thing, nor had their fathers. Mighty is the word that comes out of their mouths [i.e. He begot sons and daughters]. They utter nothing but a lie .

(889) Perhaps, you, would kill yourself (O Muhammad صلى الله عليه وسلم) in grief, over their footsteps (for their turning away from you), because they believe not in this narration (the Qur'an).

(890) "These our people have taken for worship alihah (gods) other than Him (Allah). Why do they not bring for them a clear authority? And who does more wrong than he who invents a lie against Allah.