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

(231) Indeed they did disbelieve (in the Oneness of Allah, Islam, the Qur'an and Muhammad صلى الله عليه وسلم) before (in this world), and they (used to) conjecture about the Unseen [i.e. the Hereafter, Hell, Paradise, Resurrection and the Promise of Allah (by saying) all that is untrue], from a far place.

(232) And if they belie you (O Muhammad صلى الله عليه وسلم), so were Messengers belied before you. And to Allah return all matters (for decision).

(233) And if they belie you, those before them also belied. Their Messengers came to them with clear signs, and with the Scriptures, and the book giving light.

(234) And what We have revealed to you (O Muhammad صلى الله عليه وسلم), of the Book (the Qur'an), it is the (very) truth [that you (Muhammad صلى الله عليه وسلم) and your followers must act on its instructions], confirming that which was (revealed) before it. Verily! Allah is indeed All-Aware, and All-Seer of His slaves.

(235) And they swore by Allah their most binding oath that if a warner came to them, they would be more guided than any of the nations (before them); yet when a warner (Muhammad صلى الله عليه وسلم) came to them, it increased in them nothing but flight (from the truth)

(236) Have they not travelled in the land, and seen what was the end of those before them - though they were superior to them in power? Allah is not such that anything in the heavens or in the earth escapes Him. Verily, He is All-Knowing, All-Omnipotent.

(237) And We have put a barrier before them, and a barrier behind them, and We have covered them up, so that they cannot see.

(238) Verily, We give life to the dead, and We record that which they send before (them), and their traces and all things We have recorded with numbers (as a record) in a Clear Book.

(239) Do they not see how many of the generations We have destroyed before them? Verily, they will not return to them.

(240) And surely, all - everyone of them will be brought before Us.