The word(s) "not" appears 1997 time(s) in 1622 verse(s) in Quran in Muhammad Pickthal translation.

(631) And we verily gave unto Moses the Scripture, and there was strife thereupon; and had it not been for a Word that had already gone forth from thy Lord, the case would have been judged between them, and lo! they are in grave doubt concerning it.

(632) So tread thou the straight path as thou art commanded, and those who turn (unto Allah) with thee, and transgress not. Lo! He is Seer of what ye do.

(633) And incline not toward those who do wrong lest the Fire touch you, and ye have no protecting friends against Allah, and afterward ye would not be helped.

(634) And have patience, (O Muhammad), for lo! Allah loseth not the wages of the good.

(635) In truth thy Lord destroyed not the townships tyrannously while their folk were doing right.

(636) And if thy Lord had willed, He verily would have made mankind one nation, yet they cease not differing,

(637) And say unto those who believe not: Act according to your power. Lo! We (too) are acting.

(638) And Allah's is the Invisible of the heavens and the earth, and unto Him the whole matter will be returned. So worship Him and put thy trust in Him. Lo! thy Lord is not unaware of what ye (mortals) do.

(639) He said: O my dear son! Tell not thy brethren of thy vision, lest they plot a plot against thee. Lo! Satan is for man an open foe.

(640) One among them said: Kill not Joseph but, if ye must be doing, fling him into the depth of the pit; some caravan will find him.