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

(91) And those who break the covenant of Allah after ratifying it, and sever that which Allah hath commanded should be joined, and make mischief in the earth: theirs is the curse and theirs the ill abode.

(92) Thus have We revealed it, a decisive utterance in Arabic; and if thou shouldst follow their desires after that which hath come unto thee of knowledge, then truly wouldst thou have from Allah no protecting friend nor defender.

(93) And verily We sent messengers (to mankind) before thee, and We appointed for them wives and offspring, and it was not (given) to any messenger that he should bring a portent save by Allah's leave. For everything there is a time prescribed.

(94) How should we not put our trust in Allah when He hath shown us our ways? We surely will endure the hurt ye do us. In Allah let the trusting put their trust.

(95) They all come forth unto their Lord. Then those who were despised say unto those who were scornful: We were unto you a following, can ye then avert from us aught of Allah's doom? They say: Had Allah guided us, we should have guided you. Whether we rage or patiently endure is (now) all one for us; we have no place of refuge.

(96) Verily they have plotted their plot, and their plot is with Allah, though their plot were one whereby the mountains should be moved.

(97) Except his wife, of whom We had decreed that she should be of those who stay behind.

(98) Await they aught say that the angels should come unto them or thy Lord's command should come to pass? Even so did those before them. Allah wronged them not, but they did wrong themselves,

(99) Make not your oaths a deceit between you, lest a foot should slip after being firmly planted and ye should taste evil forasmuch as ye debarred (men) from the way of Allah, and yours should be an awful doom.

(100) And We place upon their hearts veils lest they should understand it, and in their ears a deafness; and when thou makest mention of thy Lord alone in the Qur'an, they turn their backs in aversion.