The word(s) "certainly" appears 150 time(s) in 144 verse(s) in Quran in Mohsin Khan translation.

(1) The lightning almost snatches away their sight, whenever it flashes for them, they walk therein, and when darkness covers them, they stand still. And if Allah willed, He could have taken away their hearing and their sight. certainly, Allah has power over all things.

(2) And perform As-Salat (Iqamat-as-Salat), and give Zakat and whatever of good (deeds that Allah loves) you send forth for yourselves before you, you shall find it with Allah. certainly, Allah is All-Seer of what you do.

(3) Verily! We have seen the turning of your (Muhammad's صلى الله عليه وسلم) face towards the heaven. Surely, We shall turn you to a Qiblah (prayer direction) that shall please you, so turn your face in the direction of Al-Masjid-al-Haram (at Makkah). And wheresoever you people are, turn your faces (in prayer) in that direction. certainly, the people who were given the Scripture (i.e. Jews and the Christians) know well that, that (your turning towards the direction of the Ka'bah at Makkah in prayers) is the truth from their Lord. And Allah is not unaware of what they do.

(4) And certainly, We shall test you with something of fear, hunger, loss of wealth, lives and fruits, but give glad tidings to As-Sabirun (the patient).

(5) But he who fears from a testator some unjust act or wrong-doing, and thereupon he makes peace between the parties concerned, there shall be no sin on him. certainly, Allah is Oft-Forgiving, Most Merciful.

(6) Or think you that you will enter Paradise without such (trials) as came to those who passed away before you? They were afflicted with severe poverty and ailments and were so shaken that even the Messenger and those who believed along with him said, "When (will come) the Help of Allah?" Yes! certainly, the Help of Allah is near!

(7) Lo! You are the ones who love them but they love you not, and you believe in all the Scriptures [i.e. you believe in the Taurat (Torah) and the Injeel (Gospel), while they disbelieve in your Book, the Qur'an]. And when they meet you, they say, "We believe." But when they are alone, they bite the tips of their fingers at you in rage. Say: "Perish in your rage. certainly, Allah knows what is in the breasts (all the secrets)."

(8) Then after the distress, He sent down security for you. Slumber overtook a party of you, while another party was thinking about themselves (as how to save their ownselves, ignoring the others and the Prophet صلى الله عليه وسلم) and thought wrongly of Allah - the thought of ignorance. They said, "Have we any part in the affair?" Say (O Muhammad صلى الله عليه وسلم): "Indeed the affair belongs wholly to Allah." They hide within themselves what they dare not reveal to you, saying: "If we had anything to do with the affair, none of us would have been killed here." Say: "Even if you had remained in your homes, those for whom death was decreed would certainly have gone forth to the place of their death," but that Allah might test what is in your breasts; and to purify that which was in your hearts (sins), and Allah is All-Knower of what is in (your) breasts.

(9) And by the Mercy of Allah, you dealt with them gently. And had you been severe and harsh-hearted, they would have broken away from about you; so pass over (their faults), and ask (Allah's) Forgiveness for them; and consult them in the affairs. Then when you have taken a decision, put your trust in Allah, certainly, Allah loves those who put their trust (in Him).

(10) And that He might test the hypocrites, it was said to them: "Come, fight in the Way of Allah or (at least) defend yourselves." They said: "Had we known that fighting will take place, we would certainly have followed you." They were that day, nearer to disbelief than to Faith, saying with their mouths what was not in their hearts. And Allah has full knowledge of what they conceal.