The word(s) "belief" appears 136 time(s) in 116 verse(s) in Quran in Mohsin Khan translation.

(11) You [true believers in Islamic Monotheism, and real followers of Prophet Muhammad صلى الله عليه وسلم) and his Sunnah] are the best of peoples ever raised up for mankind; you enjoin Al-Ma'ruf (i.e. Islamic Monotheism and all that Islam has ordained) and forbid Al-Munkar (polytheism, disbelief and all that Islam has forbidden), and you believe in Allah . And had the people of the Scripture (Jews and Christians) believed, it would have been better for them; among them are some who have faith, but most of them are Al-Fasiqun (disobedient to Allah - and rebellious against Allah's Command).

(12) They believe in Allah and the Last Day; they enjoin Al-Ma'ruf (Islamic Monotheism, and following Prophet Muhammad صلى الله عليه وسلم) and forbid Al-Munkar (polytheism, disbelief and opposing Prophet Muhammad صلى الله عليه وسلم); and they hasten in (all) good works; and they are among the righteous.

(13) And that He might test the hypocrites, it was said to them: "Come, fight in the Way of Allah or (at least) defend yourselves." They said: "Had we known that fighting will take place, we would certainly have followed you." They were that day, nearer to disbelief than to Faith, saying with their mouths what was not in their hearts. And Allah has full knowledge of what they conceal.

(14) Verily, those who purchase disbelief at the price of Faith, not the least harm will they do to Allah. For them, there is a painful torment.

(15) Among those who are Jews, there are some who displace words from (their) right places and say: "We hear your word (O Muhammad صلى الله عليه وسلم and disobey," and "Hear and let you (O Muhammad صلى الله عليه وسلم) hear nothing." And Ra'ina with a twist of their tongues and as a mockery of the religion (Islam). And if only they had said: "We hear and obey", and "Do make us understand," it would have been better for them, and more proper; but Allah has cursed them for their disbelief, so they believe not except a few.

(16) Then what is the matter with you that you are divided into two parties about the hypocrites? Allah has cast them back (to disbelief) because of what they have earned. Do you want to guide him whom Allah has made to go astray? And he whom Allah has made to go astray, you will never find for him any way (of guidance).

(17) Verily, those who believe, then disbelieve, then believe (again), and (again) disbelieve, and go on increasing in disbelief; Allah will not forgive them, nor guide them on the (Right) Way.

(18) Because of their breaking the covenant, and of their rejecting the Ayat (proofs, evidence, verses, lessons, signs, revelations, etc.) of Allah, and of their killing the Prophets unjustly, and of their saying: "Our hearts are wrapped (with coverings, i.e. we do not understand what the Messengers say)" - nay, Allah has set a seal upon their hearts because of their disbelief, so they believe not but a little.

(19) And because of their (Jews) disbelief and uttering against Maryam (Mary السلام عليهما) a grave false charge (that she has committed illegal sexual intercourse);

(20) Surely, in disbelief are they who say that Allah is the Messiah, son of Maryam (Mary) . Say (O Muhammad صلى الله عليه وسلم): "Who then has the least power against Allah, if He were to destroy the Messiah, son of Maryam (Mary), his mother, and all those who are on the earth together?" And to Allah belongs the dominion of the heavens and the earth, and all that is between them. He creates what He wills. And Allah is Able to do all things.