The word(s) "forbidden" appears 71 time(s) in 66 verse(s) in Quran in Mohsin Khan translation.

(41) The believers, men and women, are Auliya' (helpers, supporters, friends, protectors) of one another; they enjoin (on the people) Al-Ma'ruf (i.e. Islamic Monotheism and all that Islam orders one to do), and forbid (people) from Al-Munkar (i.e. polytheism and disbelief of all kinds, and all that Islam has forbidden); they perform As-Salat (Iqamat-as-Salat), and give the Zakat, and obey Allah and His Messenger. Allah will have His Mercy on them. Surely Allah is All-Mighty, All-Wise.

(42) (The believers whose lives Allah has purchased are) those who turn to Allah in repentance (from polytheism and hypocrisy, etc.), who worship (Him), who praise (Him), who fast (or go out in Allah's Cause), who bow down (in prayer), who prostrate themselves (in prayer), who enjoin (on people) Al-Ma'ruf (i.e. Islamic Monotheism and all what Islam has ordained) and forbid (people) from Al-Munkar (i.e. disbelief, polytheism of all kinds and all that Islam has forbidden), and who observe the limits set by Allah (do all that Allah has ordained and abstain from all kinds of sins and evil deeds which Allah has forbidden). And give glad tidings to the believers.

(43) No doubt! Verily, the Auliya' of Allah [i.e. those who believe in the Oneness of Allah and fear Allah much (abstain from all kinds of sins and evil deeds which he has forbidden), and love Allah much (perform all kinds of good deeds which He has ordained)], no fear shall come upon them nor shall they grieve.

(44) And those who join that which Allah has commanded to be joined (i.e. they are good to their relatives and do not sever the bond of kinship), and fear their Lord, and dread the terrible reckoning (i.e. abstain from all kinds of sins and evil deeds which Allah has forbidden and perform all kinds of good deeds which Allah has ordained).

(45) 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?

(46) And Allah said (O mankind!): "Take not ilahain (two gods in worship). Verily, He (Allah) is (the) only One Ilah (God). Then, fear Me (Allah جل جلاله) much [and Me (Alone), i.e. be away from all kinds of sins and evil deeds that Allah has forbidden and do all that Allah has ordained and worship none but Allah] .

(47) He has forbidden you only Al-Maitah (meat of a dead animal), blood, the flesh of swine, and any animal which is slaughtered as a sacrifice for others than Allah (or has been slaughtered for idols or on which Allah's Name has not been mentioned while slaughtering). But if one is forced by necessity, without wilful disobedience, and not transgressing, - then, Allah is Oft-Forgiving, Most Merciful.

(48) And say not concerning that which your tongues put forth falsely: "This is lawful and this is forbidden," so as to invent lies against Allah. Verily, those who invent lies against Allah will never prosper.

(49) 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.

(50) On each - these as well as those - We bestow from the Bounties of your Lord. And the Bounties of your Lord can never be forbidden.