The word(s) "sure" appears 334 time(s) in 314 verse(s) in Quran in Mohsin Khan translation.

(121) And He it is Who has created the heavens and the earth in six Days and His Throne was on the water, that He might try you, which of you is the best in deeds. But if you were to say to them: "You shall indeed be raised up after death," those who disbelieve would be sure to say, "This is nothing but obvious magic. "

(122) And if We delay the torment for them till a determined term, they are sure to say, "What keeps it back?" Verily, on the day it reaches them, nothing will turn it away from them, and they will be surrounded by (or fall in) that at which they used to mock!

(123) But if We let him taste good (favour) after evil (poverty and harm) has touched him, he is sure to say: "Ills have departed from me." surely, he is exultant, and boastful (ungrateful to Allah).

(124) So perchance you (Muhammad صلى الله عليه و سلم) may give up a part of what is revealed unto you, and that your breast feels straitened for it because they say, "Why has not a treasure been sent down unto him, or an angel has come with him?" But you are only a warner. And Allah is a Wakil (Disposer of affairs, Trustee, Guardian) over all things.

(125) Can they (Muslims) who rely on a clear proof (the Qur'an) from their Lord, and whom a witness [Jibril (Gabriel عليه السلام)] from Him recites (follows) it (can they be equal with the disbelievers); and before it, came the Book of Musa (Moses), a guidance and a mercy, they believe therein, but those of the sects (Jews, Christians and all the other non-Muslim nations) that reject it (the Qur'an), the Fire will be their promised meeting-place. So be not in doubt about it (i.e. those who denied Prophet Muhammad صلى الله عليه و سلم and also denied all that which he brought from Allah. surely, they will enter Hell). Verily, it is the truth from your Lord, but most of the mankind believe not.

(126) "That you worship none but Allah; surely, I fear for you the torment of a painful Day."

(127) "And O my people! I ask of you no wealth for it, my reward is from none but Allah. I am not going to drive away those who have believed. surely, they are going to meet their Lord, but I see that you are a people that are ignorant.

(128) "And I do not say to you that with me are the Treasures of Allah, nor that I know the Ghaib (Unseen), nor do I say I am an angel, and I do not say of those whom your eyes look down upon that Allah will not bestow any good on them. Allah knows what is in their inner-selves (as regards belief, etc.). In that case, I should, indeed be one of the Zalimun (wrong-doers, oppressors)."

(129) "And construct the ship under Our Eyes and with Our Revelation, and call not upon Me on behalf of those who did wrong; they are surely to be drowned."

(130) And he [Nuh (Noah) عليه السلام] said: "Embark therein: in the Name of Allah will be its (moving) course and its (resting) anchorage. surely, my Lord is Oft-Forgiving, Most Merciful." (Tafsir At-Tabari)