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

(1161) Allah hath not assigned unto any man two hearts within his body, nor hath He made your wives whom ye declare (to be your mothers) your mothers, nor hath He made those whom ye claim (to be your sons) your sons. This is but a saying of your mouths. But Allah saith the truth and He showeth the way.

(1162) Proclaim their real parentage. That will be more equitable in the sight of Allah. And if ye know not their fathers, then (they are) your brethren in the faith, and your clients. And there is no sin for you in the mistakes that ye make unintentionally, but what your hearts purpose (that will be a sin for you). Allah is ever Forgiving, Merciful.

(1163) The Prophet is closer to the believers than their selves, and his wives are (as) their mothers. And the owners of kinship are closer one to another in the ordinance of Allah than (other) believers and the fugitives (who fled from Mecca), except that ye should do kindness to your friends. This is written in the Book (of nature).

(1164) O ye who believe! Remember Allah's favour unto you when there came against you hosts, and We sent against them a great wind and hosts ye could not see. And Allah is ever Seer of what ye do.

(1165) And when a party of them said: O folk of Yathrib! There is no stand (possible) for you, therefor turn back. And certain of them (even) sought permission of the Prophet, saying: Our homes lie open (to the enemy). And they lay not open. They but wished to flee.

(1166) And verily they had already sworn unto Allah that they would not turn their backs (to the foe). An oath to Allah must be answered for.

(1167) Say: Flight will not avail you if ye flee from death or killing, and then ye dwell in comfort but a little while.

(1168) Say: Who is he who can preserve you from Allah if He intendeth harm for you, or intendeth mercy for you. They will not find that they have any friend or helper other than Allah.

(1169) Allah already knoweth those of you who hinder, and those who say unto their brethren: "Come ye hither unto us!" and they come not to the stress of battle save a little,

(1170) Being sparing of their help to you (believers). But when the fear cometh, then thou (Muhammad) seest them regarding thee with rolling eyes like one who fainteth unto death. Then, when the fear departeth, they scald you with sharp tongues in their greed for wealth (from the spoil). Such have not believed. Therefor Allah maketh their deeds fruitless. And that is easy for Allah.