The word(s) "before" appears 356 time(s) in 337 verse(s) in Quran in Mohsin Khan translation.

(131) Indeed, We sent (Messengers) before you (O Muhammad صلى الله عليه و سلم) amongst the sects (communities) of old.

(132) And We created not the heavens and the earth and all that is between them except with truth, and the Hour is surely coming, so overlook (O Muhammad صلى الله عليه و سلم) their faults with gracious forgiveness. [This was before the ordainment of Jihad - holy fighting in Allah's cause].

(133) Those before them indeed plotted, but Allah struck at the foundation of their building, and then the roof fell down upon them, from above them, and the torment overtook them from directions they did not perceive.

(134) Do they (the disbelievers and polytheists) await but that the angels should come to them [to take away their souls (at death)], or there should come the command (i.e. the torment or the Day of Resurrection) of your Lord? Thus did those before them. And Allah wronged them not, but they used to wrong themselves.

(135) And those who joined others in worship with Allah said: "If Allah had so willed, neither we nor our fathers would have worshipped aught but Him, nor would we have forbidden anything without (Command from) Him." So did those before them. Then! Are the Messengers charged with anything but to convey clearly the Message?

(136) And We sent not (as Our Messengers) before you (O Muhammad صلى الله عليه و سلم) any but men, whom We sent revelation, (to preach and invite mankind to believe in the Oneness of Allah). So ask (you, O pagans of Makkah) of those who know the Scripture [learned men of the Taurat (Torah) and the Injeel (Gospel)], if you know not.

(137) By Allah, We indeed sent (Messengers) to the nations before you (O Muhammad صلى الله عليه و سلم), but Shaitan (Satan) made their deeds fair-seeming to them. So he (Satan) is their Wali (helper) today (i.e. in this world), and theirs will be a painful torment.

(138) And unto those who are Jews, We have forbidden such things as We have mentioned to you (O Muhammad صلى الله عليه و سلم) before [see Verse 6:146]. And We wronged them not, but they used to wrong themselves.

(139) (And We said): "If you do good, you do good for your ownselves, and if you do evil (you do it) against yourselves." Then, when the second promise came to pass, (We permitted your enemies) to disgrace your faces and to enter the mosque (of Jerusalem) as they had entered it before, and to destroy with utter destruction all that fell in their hands.

(140) And there is not a town (population) but We shall destroy it before the Day of Resurrection, or punish it with a severe torment. That is written in the Book (of Our Decrees)