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

(1801) You (O Muhammad صلى الله عليه وسلم), by the Grace of your Lord, are not mad.

(1802) So (O Muhammad صلى الله عليه وسلم) obey you not the deniers [(of Islamic Monotheism - those who belie the Verses of Allah), the Oneness of Allah, and the Messengership of Muhammad صلى الله عليه وسلم]

(1803) And (O Muhammad صلى الله عليه وسلم) obey you not everyone Hallaf Mahin (the one who swears much and is a liar or is worthless). [Tafsir At-Tabari]

(1804) Then they called out one to another as soon as the morning broke.

(1805) The best among them said: "Did I not tell you: why say you not: Insha' Allah (If Allah wills)."

(1806) Then they turned one against another, blaming.

(1807) Shall We then treat the Muslims (believers of Islamic Monotheism, doers of righteous deeds) like the Mujrimun (criminals, polytheists and disbelievers, etc.)?

(1808) (Remember) the Day when the Shin shall be laid bare (i.e. the Day of Resurrection) and they shall be called to prostrate themselves (to Allah), but they (hypocrites) shall not be able to do so.

(1809) Their eyes will be cast down and ignominy will cover them; they used to be called to prostrate themselves (offer prayers), while they were healthy and good (in the life of the world, but they did not).

(1810) Then leave Me Alone with such as belie this Qur'an. We shall punish them gradually from directions they perceive not.