The word(s) "know" appears 656 time(s) in 561 verse(s) in Quran in Abdullah Yusuf Ali translation.

(301) He replied: "The knowledge of that is with my Lord, duly recorded: my Lord never errs, nor forgets,-

(302) (Pharaoh) said: "Believe ye in Him before I give you permission? Surely this must be your leader, who has taught you magic! be sure I will cut off your hands and feet on opposite sides, and I will have you crucified on trunks of palm-trees: so shall ye know for certain, which of us can give the more severe and the more lasting punishment!"

(303) But the god of you all is the One Allah: there is no god but He: all things He comprehends in His knowledge.

(304) We know best what they will say, when their leader most eminent in conduct will say: "Ye tarried not longer than a day!"

(305) He knows what (appears to His creatures as) before or after or behind them: but they shall not compass it with their knowledge.

(306) High above all is Allah, the King, the Truth! Be not in haste with the Qur'an before its revelation to thee is completed, but say, "O my Lord! advance me in knowledge."

(307) Say: "Each one (of us) is waiting: wait ye, therefore, and soon shall ye know who it is that is on the straight and even way, and who it is that has received Guidance."

(308) Say: "My Lord knoweth (every) word (spoken) in the heavens and on earth: He is the One that heareth and knoweth (all things)."

(309) Or have they taken for worship (other) gods besides him? Say, "Bring your convincing proof: this is the Message of those with me and the Message of those before me." But most of them know not the Truth, and so turn away.

(310) He knows what is before them, and what is behind them, and they offer no intercession except for those who are acceptable, and they stand in awe and reverence of His (Glory).