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

(1521) Those who give not the Zakat and they are disbelievers in the Hereafter.

(1522) Truly, those who believe (in the Oneness of Allah, and in His Messenger Muhammad صلى الله عليه وسلم - Islamic Monotheism) and do righteous good deeds, for them will be an endless reward that will never stop (i.e. Paradise).

(1523) As for 'Ad, they were arrogant in the land without right, and they said: "Who is mightier than us in strength?" See they not that Allah, Who created them was mightier in strength than them. And they used to deny Our Ayat (proofs, evidence, verses, lessons, revelations, etc.)!

(1524) And as for Thamud, We showed and made clear to them the Path of Truth (Islamic Monotheism) through Our Messenger, (i.e. showed them the way of success), but they preferred blindness to guidance; so the Sa'iqah (a destructive awful cry, torment, hit, a thunderbolt) of disgracing torment seized them because of what they used to earn.

(1525) And you have not been hiding yourselves (in the world), lest your ears, and your eyes, and your skins should testify against you; but you thought that Allah knew not much of what you were doing.

(1526) Then, if they bear the torment patiently, then the Fire is the home for them, and if they seek to please Allah, yet they are not of those who will ever be allowed to please Allah.

(1527) And those who disbelieve say: "Listen not to this Qur'an, and make noise in the midst of its (recitation) that you may overcome."

(1528) Verily, those who say: "Our Lord is Allah (Alone)," and then they stand firm, on them the angels will descend (at the time of their death) (saying): "Fear not, nor grieve! But receive the glad tidings of Paradise which you have been promised!

(1529) And who is better in speech than he who [says: "My Lord is Allah (believes in His Oneness)," and then stands firm (acts upon His Order), and] invites (men) to Allah's (Islamic Monotheism), and does righteous deeds, and says: "I am one of the Muslims."

(1530) The good deed and the evil deed cannot be equal. Repel (the evil) with one which is better (i.e. Allah orders the faithful believers to be patient at the time of anger, and to excuse those who treat them badly) then verily he, between whom and you there was enmity, (will become) as though he was a close friend.