The word(s) "certainly" appears 476 time(s) in 417 verse(s) in Quran in Muhammad Habib Shakir translation.

(341) When their apostles came to them from before them and from behind them, saying, Serve nothing but Allah, they said: If our Lord had pleased He would certainly have sent down angels, so we are surely unbelievers in that with which you are sent.

(342) So We sent on them a furious wind in unlucky days, that We may make them taste the chastisement of abasement in this world's life; and certainly the chastisement of the hereafter is much more abasing, and they shall not be helped.

(343) Therefore We will most certainly make those who disbelieve taste a severe punishment, and We will most certainly reward them for the evil deeds they used to do.

(344) And if We had made it a Quran in a foreign tongue, they would certainly have said: Why have not its communications been made clear? What! a foreign (tongue) and an Arabian! Say: It is to those who believe a guidance and a healing; and (as for) those who do not believe, there is a heaviness in their ears and it is obscure to them; these shall be called to from a far-off place.

(345) And certainly We gave the Book to Musa, but it has been differed about, and had not a word already gone forth from your Lord, judgment would certainly have been given between them; and most surely they are in a disquieting doubt about it.

(346) And if We make him taste mercy from Us after distress that has touched him, he would most certainly say: This is of me, and I do not think the hour will come to pass, and if I am sent back to my Lord, I shall have with Him sure good; but We will most certainly inform those who disbelieved of what they did, and We will most certainly make them taste of hard chastisement.

(347) And they did not become divided until after knowledge had come to them out of envy among themselves; and had not a word gone forth from your Lord till an appointed term, certainly judgment would have been given between them; and those who were made to inherit the Book after them are most surely in disquieting doubt concerning it.

(348) Or have they associates who have prescribed for them any religion that Allah does not sanction? And were it not for the word of judgment, decision would have certainly been given between them; and surely the unjust shall have a painful punishment.

(349) And if Allah should amplify the provision for His servants they would certainly revolt in the earth; but He sends it down according to a measure as He pleases; surely He is Aware of, Seeing, His servants.

(350) And if you should ask them, Who created the heavens and the earth? they would most certainly say: The Mighty, the Knowing One, has created them;