The word(s) "certain" appears 498 time(s) in 437 verse(s) in Quran in Muhammad Habib Shakir translation.

(201) And your Lord best knows those who are in the heavens and the earth; and certainly We have made some of the prophets to excel others, and to Dawood We gave a scripture.

(202) He said: Tell me, is this he whom Thou hast honored above me? If Thou shouldst respite me to the day of resurrection, I will most certainly cause his progeny to perish except a few.

(203) And surely they had purposed to turn you away from that which We have revealed to you, that you should forge against Us other than that, and then they would certainly have taken you for a friend.

(204) And had it not been that We had already established you, you would certainly have been near to incline to them a little;

(205) In that case We would certainly have made you to taste a double (punishment) in this life and a double (punishment) after death, then you would not have found any helper against Us.

(206) And if We please, We should certainly take away that which We have revealed to you, then you would not find for it any protector against Us.

(207) And certainly We have explained for men in this Quran every kind of similitude, but most men do not consent to aught but denying.

(208) Say: Had there been in the earth angels walking about as settlers, We would certainly have sent down to them from the heaven an angel as an apostle.

(209) And certainly We gave Musa nine clear signs; so ask the children of Israel. When he came to them, Firon said to him: Most surely I deem you, O Musa, to be a man deprived of reason.

(210) And you might think them awake while they were asleep and We turned them about to the right and to the left, while their dog (lay) outstretching its paws at the entrance; if you looked at them you would certainly turn back from them in flight, and you would certainly be filled with awe because of them.