The word(s) "believe" appears 1522 time(s) in 1179 verse(s) in Quran in Mohsin Khan translation.

(611) But whoever comes to Him (Allah) as a believer (in the Oneness of Allah), and has done righteous good deeds, for such are the high ranks (in the Hereafter), -

(612) And verily, I am indeed forgiving to him who repents, believes (in My Oneness, and associates none in worship with Me) and does righteous good deeds, and then remains constant in doing them, (till his death).

(613) Whoever turns away from it (this Qur'an - i.e. does not believe in it, nor acts on its orders), verily, they will bear a heavy burden (of sins) on the Day of Resurrection,

(614) The Day when the Trumpet will be blown (the second blowing): that Day, We shall gather the Mujrimun (criminals, polytheists, sinners, disbelievers in the Oneness of Allah) blue or blind-eyed with thirst.

(615) And (all) faces shall be humbled before (Allah), Al-Hayyul-Qayyum (the Ever Living, the One Who sustains and protects all that exists). And he who carried (a burden of) wrongdoing (i.e. he who disbelieved in Allah, ascribed partners to Him, and did deeds of His disobedience), will be indeed a complete failure (on that Day).

(616) And he who works deeds of righteousness, while he is a believer (in Islamic Monotheism), then he will have no fear of injustice, nor of any curtailment (of his reward).

(617) "But whosoever turns away from My Reminder (i.e. neither believes in this Qur'an nor acts on its teachings.) verily, for him is a life of hardship, and We shall raise him up blind on the Day of Resurrection."

(618) And thus do We requite him who transgresses beyond bounds [i.e. commits the great sins and disobeys his Lord (Allah) and believes not in His Messengers, and His revealed Books, like this Qur'an], and believes not in the Ayat (proofs, evidence, verses, lessons, signs, revelations, etc.) of his Lord; and the torment of the Hereafter is far more severe and more lasting.

(619) And strain not your eyes in longing for the things We have given for enjoyment to various groups of them (polytheists and disbelievers in the Oneness of Allah), the splendour of the life of this world, that We may test them thereby. But the provision (good reward in the Hereafter) of your Lord is better and more lasting.

(620) Say (O Muhammad صلى الله عليه وسلم): "Each one (believer and disbeliever.) is waiting, so wait you too; and you shall know who are they that are on the Straight and Even Path (i.e. Allah's religion of Islamic Monotheism), and who are they that have let themselves be guided (on the Right Path).