The word(s) "should" appears 389 time(s) in 321 verse(s) in Quran in Muhammad Habib Shakir translation.

(91) Say: Shall I take a guardian besides Allah, the Originator of the heavens and the earth, and He feeds (others) and is not (Himself) fed. Say: I am commanded to be the first who submits himself, and you should not be of the polytheists.

(92) And if their turning away is hard on you, then if you can seek an opening (to go down) into the earth or a ladder (to ascend up) to heaven so that you should bring them a sign and if Allah had pleased He would certainly have gathered them all on guidance, therefore be not of the ignorant.

(93) Say: Tell me if the chastisement of Allah should overtake you or the hour should come upon you, will you call (on others) besides Allah, if you are truthful?

(94) Say: Have you considered if the chastisement of Allah should overtake you suddenly or openly, will any be destroyed but the unjust people?

(95) And do not drive away those who call upon their Lord in the morning and the evening, they desire only His favor; neither are you answerable for any reckoning of theirs, nor are they answerable for any reckoning of yours, so that you should drive them away and thus be of the unjust.

(96) Say: I am forbidden to serve those whom you call upon besides Allah. Say: I do not follow your low desires. for then indeed I should have gone astray and I should not be of those who go aright.

(97) Say: Who is it that delivers you from the dangers of the land and the sea (when) you call upon Him (openly) humiliating yourselves, and in secret: If He delivers us from this, we should certainly be of the grateful ones.

(98) Say: He has the power that He should send on you a chastisement from above you or from beneath your feet, or that He should throw you into confusion, (making you) of different parties; and make some of you taste the fighting of others. See how We repeat the communications that they may understand.

(99) And leave those who have taken their religion for a play and an idle sport, and whom this world's life has deceived, and remind (them) thereby lest a soul should be given up to destruction for what it has earned; it shall not have besides Allah any guardian nor an intercessor, and if it should seek to give every compensation, it shall not be accepted from it; these are they who shall be given up to destruction for what they earned; they shall have a drink of boiling water and a painful chastisement because they disbelieved.

(100) Say: Shall we call on that besides Allah, which does not benefit us nor harm us, and shall we be returned back on our heels after Allah has guided us, like him whom the Shaitans have made to fall down perplexed in the earth? He has companions who call him to the right way, (saying): Come to us. Say: Surely the guidance of Allah, that is the (true) guidance, and we are commanded that we should submit to the Lord of the worlds.