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

(431) It was said: "Enter thou the Garden." He said: "Ah me! Would that my People knew (what I know)!-

(432) Glory to Allah, Who created in pairs all things that the earth produces, as well as their own (human) kind and (other) things of which they have no knowledge.

(433) And the sun runs his course for a period determined for him: that is the decree of (Him), the Exalted in Might, the All-knowing.

(434) Let not their speech, then, grieve thee. Verily We know what they hide as well as what they disclose.

(435) "Is not He Who created the heavens and the earth able to create the like thereof?" - Yea, indeed! for He is the Creator Supreme, of skill and knowledge (infinite)!

(436) And they have invented a blood-relationship between Him and the Jinns: but the Jinns know (quite well) that they have indeed to appear (before his Judgment-Seat)!

(437) But (now that the Qur'an has come), they reject it: But soon will they know!

(438) "No knowledge have I of the Chiefs on high, when they discuss (matters) among themselves.

(439) "And ye shall certainly know the truth of it (all) after a while."

(440) If ye reject (Allah), Truly Allah hath no need of you; but He liketh not ingratitude from His servants: if ye are grateful, He is pleased with you. No bearer of burdens can bear the burden of another. In the end, to your Lord is your Return, when He will tell you the truth of all that ye did (in this life). for He knoweth well all that is in (men's) hearts.