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

(131) For what cause should I not serve Him Who hath created me, and unto Whom ye will be brought back?

(132) Shall I take (other) gods in place of Him when, if the Beneficent should wish me any harm, their intercession will avail me naught, nor can they save?

(133) Then truly I should be in error manifest.

(134) And had We willed, We verily could have quenched their eyesight so that they should struggle for the way. Then how could they have seen?

(135) Say: Lo! if I should disobey my Lord, I fear the doom of a tremendous Day.

(136) And those who put away false gods lest they should worship them and turn to Allah in repentance, for them there are glad tidings. Therefor give good tidings (O Muhammad) to My bondmen

(137) And verily, if thou shouldst ask them: Who created the heavens and the earth? they will say: Allah. Say: Bethink you then of those ye worship beside Allah, if Allah willed some hurt for me, could they remove from me His hurt; or if He willed some mercy for me, could they restrain His mercy? Say: Allah is my all. In Him do (all) the trusting put their trust.

(138) Lest any soul should say: Alas, my grief that I was unmindful of Allah, and I was indeed among the scoffers!

(139) Or should say: If Allah had but guided me I should have been among the dutiful!

(140) Or should say, when it seeth the doom: Oh, that I had but a second chance that I might be among the righteous!