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

(421) And those to whom knowledge has come see that the (Revelation) sent down to thee from thy Lord - that is the Truth, and that it guides to the Path of the Exalted (in might), Worthy of all praise.

(422) Then, when We decreed (Solomon's) death, nothing showed them his death except a little worm of the earth, which kept (slowly) gnawing away at his staff: so when he fell down, the Jinns saw plainly that if they had known the unseen, they would not have tarried in the humiliating Penalty (of their Task).

(423) Say: "Our Lord will gather us together and will in the end decide the matter between us (and you) in truth and justice: and He is the one to decide, the One Who knows all."

(424) Say: "Verily my Lord doth cast the (mantle of) Truth (over His servants),- He that has full knowledge of (all) that is hidden."

(425) Is he, then, to whom the evil of his conduct is made alluring, so that he looks upon it as good, (equal to one who is rightly guided)? For Allah leaves to stray whom He wills, and guides whom He wills. So let not thy soul go out in (vainly) sighing after them: for Allah knows well all that they do!

(426) And Allah did create you from dust; then from a sperm-drop; then He made you in pairs. And no female conceives, or lays down (her load), but with His knowledge. Nor is a man long-lived granted length of days, nor is a part cut off from his life, but is in a Decree (ordained). All this is easy to Allah.

(427) And so amongst men and crawling creatures and cattle, are they of various colours. Those truly fear Allah, among His Servants, who have knowledge: for Allah is Exalted in Might, Oft-Forgiving.

(428) Verily Allah knows (all) the hidden things of the heavens and the earth: verily He has full knowledge of all that is in (men's) hearts.

(429) Do they not travel through the earth, and see what was the End of those before them,- though they were superior to them in strength? Nor is Allah to be frustrated by anything whatever in the heavens or on earth: for He is All-knowing. All-Powerful.

(430) They said: "Our Lord doth know that we have been sent on a mission to you: