The word(s) "certain" appears 184 time(s) in 178 verse(s) in Quran in Mohsin Khan translation.

(91) "O our Lord! certainly, You know what we conceal and what we reveal. Nothing on the earth or in the heaven is hidden from Allah.

(92) So think not that Allah will fail to keep His Promise to His Messengers. certainly, Allah is All-Mighty, All-Able of Retribution.

(93) And certainly We! We it is Who give life, and cause death, and We are the Inheritors.

(94) "certainly, you shall have no authority over My slaves, except those who follow you of the Ghawun (Mushrikun and those who go astray, criminals, polytheists, and evil-doers).

(95) "And we have brought you the truth (the news of the destruction of your nation) and certainly, we tell the truth.

(96) Look not with your eyes ambitiously at what We have bestowed on certain classes of them (the disbelievers), nor grieve over them. And lower your wings for the believers (be courteous to the fellow-believers).

(97) So, by your Lord (O Muhammad صلى الله عليه و سلم), We shall certainly call all of them to account.

(98) And worship your Lord until there comes unto you the certainty (i.e. death).

(99) certainly, Allah knows what they conceal and what they reveal. Truly, He likes not the proud.

(100) And as for those who emigrated for the Cause of Allah, after they had been wronged, We will certainly give them goodly residence in this world, but indeed the reward of the Hereafter will be greater; if they but knew!