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

(671) Go, O my sons, and ascertain concerning Joseph and his brother, and despair not of the Spirit of Allah. Lo! none despaireth of the Spirit of Allah save disbelieving folk.

(672) They said: Is it indeed thou who art Joseph? He said: I am Joseph and this is my brother. Allah hath shown us favour. Lo! he who wardeth off (evil) and endureth (findeth favour); for lo! Allah loseth not the wages of the kindly.

(673) Then, when the bearer of glad tidings came, he laid it on his face and he became a seer once more. He said: Said I not unto you that I know from Allah that which ye know not?

(674) This is of the tidings of the Unseen which We inspire in thee (Muhammad). Thou wast not present with them when they fixed their plan and they were scheming.

(675) And though thou try much, most men will not believe.

(676) And most of them believe not in Allah except that they attribute partners (unto Him).

(677) Say: This is my Way: I call on Allah with sure knowledge. I and whosoever followeth me - Glory be to Allah! - and I am not of the idolaters.

(678) We sent not before thee (any messengers) save men whom We inspired from among the folk of the townships - Have they not travelled in the land and seen the nature of the consequence for those who were before them? And verily the abode of the Hereafter, for those who ward off (evil), is best. Have ye then no sense? -

(679) Till, when the messengers despaired and thought that they were denied, then came unto them Our help, and whom We would was saved. And Our wrath cannot be warded from the guilty.

(680) Alif. Lam. Mim. Ra. These are verses of the Scripture. That which is revealed unto thee from thy Lord is the Truth, but most of mankind believe not.