The word(s) "know" appears 759 time(s) in 646 verse(s) in Quran in Muhammad Habib Shakir translation.

(11) Do you then hope that they would believe in you, and a party from among them indeed used to hear the Word of Allah, then altered it after they had understood it, and they know (this).

(12) Do they not know that Allah knows what they keep secret and what they make known?

(13) And there are among them illiterates who know not the Book but only lies, and they do but conjecture.

(14) And they say: Fire shall not touch us but for a few days. Say: Have you received a promise from Allah, then Allah will not fail to perform His promise, or do you speak against Allah what you do not know?

(15) And they will never invoke it on account of what their hands have sent before, and Allah knows the unjust.

(16) And they followed what the Shaitans chanted of sorcery in the reign of Sulaiman, and Sulaiman was not an unbeliever, but the Shaitans disbelieved, they taught men sorcery and that was sent down to the two angels at Babel, Harut and Marut, yet these two taught no man until they had said, "Surely we are only a trial, therefore do not be a disbeliever." Even then men learned from these two, magic by which they might cause a separation between a man and his wife; and they cannot hurt with it any one except with Allah's permission, and they learned what harmed them and did not profit them, and certainly they know that he who bought it should have no share of good in the hereafter and evil was the price for which they sold their souls; had they but known this.

(17) And if they had believed and guarded themselves (against evil), reward from Allah would certainly have been better; had they but known (this).

(18) Whatever communications We abrogate or cause to be forgotten, We bring one better than it or like it. Do you not know that Allah has power over all things?

(19) Do you not know that Allah's is the kingdom of the heavens and the earth, and that besides Allah you have no guardian or helper?

(20) And the Jews say: The Christians do not follow anything (good) and the Christians say: The Jews do not follow anything (good) while they recite the (same) Book. Even thus say those who have no knowledge, like to what they say; so Allah shall judge between them on the day of resurrection in what they differ.