The word(s) "should" appears 190 time(s) in 163 verse(s) in Quran in Muhammad Pickthal translation.

(41) But then, if it is afterwards ascertained that both of them merit (the suspicion of) sin, let two others take their place of those nearly concerned, and let them swear by Allah, (saying): Verily our testimony is truer than their testimony and we have not transgressed (the bounds of duty), for them indeed we should be of the evil-doers.

(42) Of them are some who listen unto thee, but We have placed upon their hearts veils, lest they should understand, and in their ears a deafness. If they saw every token they would not believe therein; to the point that, when they come unto thee to argue with thee, the disbelievers say: This is naught else than fables of the men of old.

(43) Say: Have ye imagined, if Allah should take away your hearing and your sight and seal your hearts, Who is the Allah Who could restore it to you save Allah? See how We display the revelations unto them! Yet still they turn away.

(44) Repel not those who call upon their Lord at morn and evening, seeking His Countenance. Thou art not accountable for them in aught, nor are they accountable for thee in aught, that thou shouldst repel them and be of the wrong-doers.

(45) Say: I am forbidden to worship those on whom ye call instead of Allah. Say: I will not follow your desires, for then should I go astray and I should not be of the rightly guided.

(46) How should I fear that which ye set up beside Him, when ye fear not to set up beside Allah that for which He hath revealed unto you no warrant? Which of the two factions hath more right to safety? (Answer me that) if ye have knowledge.

(47) And though We should send down the angels unto them, and the dead should speak unto them, and We should gather against them all things in array, they would not believe unless Allah so willed. Howbeit, most of them are ignorant.

(48) How should ye not eat of that over which the name of Allah hath been mentioned, when He hath explained unto you that which is forbidden unto you unless ye are compelled thereto. But lo! many are led astray by their own lusts through ignorance. Lo! thy Lord, He is Best Aware of the transgressors.

(49) And thus have We made in every city great ones of its wicked ones, that they should plot therein. They do but plot against themselves, though they perceive not.

(50) Lest ye should say: The Scripture was revealed only to two sects before us, and we in sooth were unaware of what they read;