The word(s) "knew" appears 35 time(s) in 33 verse(s) in Quran in Mohsin Khan translation.

(11) And We divided them into twelve tribes (as distinct) nations. We revealed to Musa (Moses) when his people asked him for water (saying): "Strike the stone with your stick", and there gushed forth out of it twelve springs, each group knew its own place for water. We shaded them with the clouds and sent down upon them Al-Manna and the quails (saying): "Eat of the good things with which We have provided you." They harmed Us not but they used to harm themselves.

(12) March forth, whether you are light (being healthy, young and wealthy) or heavy (being ill, old and poor), and strive hard with your wealth and your lives in the Cause of Allah. This is better for you, if you but knew.

(13) "So sufficient is Allah as a witness between us and you that we indeed knew nothing of your worship of us."

(14) This is of the news of the Unseen which We reveal unto you (O Muhammad صلى الله عليه و سلم); neither you nor your people knew it before this. So be patient. Surely, the (good) end is for Al-Muttaqun (the pious - See V.2:2)

(15) We relate unto you (Muhammad صلى الله عليه و سلم) the best of stories through Our Revelations unto you, of this Qur'an. And before this (i.e. before the coming of Divine Revelation to you), you were among those who knew nothing about it (the Qur'an).

(16) And he said to the one whom he knew to be saved: "Mention me to your lord (i.e. your king, so as to get me out of the prison)." But Shaitan (Satan) made him forget to mention it to his Lord [or Satan made Yusuf (Joseph) to forget the remembrance of his Lord (Allah) as to ask for His Help, instead of others]. So [Yusuf (Joseph)] stayed in prison a few (more) years.

(17) And as for those who emigrated for the Cause of Allah, after they had been wronged, We will certainly give them goodly residence in this world, but indeed the reward of the Hereafter will be greater; if they but knew!

(18) So (it was)! And We knew all about him (Dhul-Qarnain).

(19) If only those who disbelieved knew (the time) when they will not be able to ward off the Fire from their faces, nor from their backs, and they will not be helped.

(20) Is it not a sign to them that the learned scholars (like 'Abdullah bin Salam رضي الله عنه who embraced Islam) of the Children of Israel knew it (as true)?