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

(331) And if their aversion is grievous unto thee, then, if thou canst, seek a way down into the earth or a ladder unto the sky that thou mayst bring unto them a portent (to convince them all)! - If Allah willed, He could have brought them all together to the guidance - So be not thou among the foolish ones.

(332) They say: Why hath no portent been sent down upon him from his Lord? Say: Lo! Allah is Able to send down a portent. But most of them know not.

(333) There is not an animal in the earth, nor a flying creature flying on two wings, but they are peoples like unto you. We have neglected nothing in the Book (of Our decrees). Then unto their Lord they will be gathered.

(334) We send not the messengers save as bearers of good news and warners. Whoso believeth and doeth right, there shall no fear come upon them neither shall they grieve.

(335) Say (O Muhammad, to the disbelievers): I say not unto you (that) I possess the treasures of Allah, nor that I have knowledge of the Unseen; and I say not unto you: Lo! I am an angel. I follow only that which is inspired in me. Say: Are the blind man and the seer equal? Will ye not then take thought?

(336) Repel not those who call upon their Lord at morn and evening, seeking His Countenance. Thou art not accountable for them in aught, nor are they accountable for thee in aught, that thou shouldst repel them and be of the wrong-doers.

(337) And even so do We try some of them by others, that they say: Are these they whom Allah favoureth among us? Is not Allah best Aware of the thanksgivers?

(338) Say: I am forbidden to worship those on whom ye call instead of Allah. Say: I will not follow your desires, for then should I go astray and I should not be of the rightly guided.

(339) Say: I am (relying) on clear proof from my Lord, while ye deny Him. I have not that for which ye are impatient. The decision is for Allah only. He telleth the truth and He is the Best of Deciders.

(340) And with Him are the keys of the Invisible. None but He knoweth them. And He knoweth what is in the land and the sea. not a leaf falleth but He knoweth it, not a grain amid the darkness of the earth, naught of wet or dry but (it is noted) in a clear record.