The word(s) "sins" appears 134 time(s) in 127 verse(s) in Quran in Mohsin Khan translation.

(101) And those who avoid the greater sins, and Al-Fawahish (illegal sexual intercourse), and when they are angry, forgive.

(102) From Fir'aun (Pharaoh); verily he was arrogant and was of the Musrifun (those who transgress beyond bound in spending and other things and commit great sins).

(103) This, because you took the revelations of Allah (this Qur'an) in mockery, and the life of the world deceived you. So this Day, they shall not be taken out from there (Hell), nor shall they be returned to the worldly life, (so that they repent to Allah, and beg His Pardon for their sins).

(104) O our people! Respond (with obedience) to Allah's Caller (i.e. Allah's Messenger Muhammad صلى الله عليه وسلم), and believe in him (i.e. believe in that which Muhammad صلى الله عليه وسلم has brought from Allah and follow him). He (Allah) will forgive you of your sins, and will save you from a painful torment (i.e. Hell-fire)

(105) But those who believe and do righteous good deeds, and believe in that which is sent down to Muhammad (صلى الله عليه وسلم) - for it is the truth from their Lord - He will expiate from them their sins, and will make good their state.

(106) That Allah may forgive you your sins of the past and the future, and complete His Favour on you, and guide you on the Straight Path,

(107) That He may admit the believing men and the believing women to Gardens under which rivers flow (i.e. Paradise), to abide therein forever, and He may expiate from them their sins; and that is with Allah a supreme success,

(108) O you who believe! Avoid much suspicion; indeed some suspicions are sins. And spy not, neither backbite one another. Would one of you like to eat the flesh of his dead brother? You would hate it (so hate backbiting) . And fear Allah. Verily, Allah is the One Who forgives and accepts repentance, Most Merciful.

(109) Marked by your Lord for the Musrifun (polytheists, criminals, sinners - those who trespass Allah's set limits in evil-doings by committing great sins).

(110) Those who avoid great sins (See the Qur'an, Verses: 6:152,153) and Al-Fawahish (illegal sexual intercourse) except the small faults, - verily, your Lord is of Vast Forgiveness. He knows you well when He created you from the earth (Adam), and when you were fetuses in your mothers' wombs. So ascribe not purity to yourselves. He knows best him who fears Allah and keeps his duty to Him [i.e. those who are Al-Muttaqun (the pious. See V.2:2)].