The word(s) "know" appears 814 time(s) in 684 verse(s) in Quran in Mohsin Khan translation.

(441) Fir'aun (Pharaoh) said: "O chiefs! I know not that you have an ilah (a god) other than me. So kindle for me (a fire), O Haman, to bake (bricks out of) clay, and set up for me a Sarh (a lofty tower, or palace) in order that I may look at (or look for) the Ilah (God) of Musa (Moses); and verily, I think that he [Musa (Moses)] is one of the liars."

(442) But if they answer you not (i.e. do not bring the Book nor believe in your doctrine of Islamic Monotheism), then know that they only follow their own lusts. And who is more astray than one who follows his own lusts, without guidance from Allah? Verily Allah guides not the people who are Zalimun (wrong-doers, disobedient to Allah, and polytheists).

(443) Verily you (O Muhammad صلى الله عليه وسلم) guide not whom you like, but Allah guides whom He wills. And He knows best those who are the guided.

(444) And they say: "If we follow the guidance with you, we would be snatched away from our land." Have We not established for them a secure sanctuary (Makkah), to which are brought fruits of all kinds, a provision from Ourselves, but most of them know not.

(445) And your Lord knows what their breasts conceal, and what they reveal.

(446) And We shall take out from every nation a witness, and We shall say: "Bring your proof." Then they shall know that the truth is with Allah (Alone), and the lies (false gods) which they invented will disappear from them.

(447) He said: "This has been given to me only because of the knowledge I possess." Did he not know that Allah had destroyed before him generations, men who were stronger than him in might and greater in the amount (of riches) they had collected? But the Mujrimun (criminals, disbelievers, polytheists, sinners) will not be questioned of their sins (because Allah knows them well, so they will be punished without being called to account).

(448) But those who had been given (religious) knowledge said: "Woe to you! The Reward of Allah (in the Hereafter) is better for those who believe and do righteous good deeds, and this none shall attain except those who are As-Sabirun (the patient in following the truth)."

(449) And those who had desired (for a position like) his position the day before, began to say: "know you not that it is Allah Who enlarges the provision or restricts it to whomsoever He pleases of His slaves. Had it not been that Allah was Gracious to us, He could have caused the earth to swallow us up (also)! know you not that the disbelievers will never be successful.

(450) Alif-Lam-Mim. [These letters are one of the miracles of the Qur'an, and none but Allah (Alone) knows their meanings.]