The word(s) "should" appears 194 time(s) in 173 verse(s) in Quran in Mohsin Khan translation.

(51) "We should have invented a lie against Allah if we returned to your religion, after Allah has rescued us from it. And it is not for us to return to it unless Allah, our Lord, should will. Our Lord comprehends all things in His Knowledge. In Allah (Alone) we put our trust. Our Lord! Judge between us and our people in truth, for You are the Best of those who give judgment."

(52) And if the people of the towns had believed and had the Taqwa (piety), certainly, We should have opened for them blessings from the heaven and the earth, but they belied (the Messengers). So We took them (with punishment) for what they used to earn (polytheism and crimes).

(53) And (remember) when your Lord brought forth from the Children of Adam, from their loins, their seed (or from Adam's loin his offspring) and made them testify as to themselves (saying): "Am I not your Lord?" They said: "Yes! We testify," lest you should say on the Day of Resurrection: "Verily, we have been unaware of this."

(54) Or lest you should say: "It was only our fathers afortime who took others as partners in worship along with Allah, and we were (merely their) descendants after them; will You then destroy us because of the deeds of men who practised Al-Batil (i.e. polytheism and committing crimes and sins, invoking and worshipping others besides Allah)?" (Tafsir At-Tabari).

(55) Say (O Muhammad صلى الله عليه وسلم): "I possess no power over benefit or harm to myself except as Allah wills. If I had the knowledge of the Ghaib (Unseen), I should have secured for myself an abundance of wealth, and no evil should have touched me. I am but a warner, and a bringer of glad tidings unto people who believe."

(56) And (remember) when Allah promised you (Muslims) one of the two parties (of the enemy i.e. either the army or the caravan) that it should be yours; you wished that the one not armed (the caravan) should be yours, but Allah willed to justify the truth by His Words and to cut off the roots of the disbelievers (i.e. in the battle of Badr).

(57) And why should not Allah punish them while they hinder (men) from Al-Masjid-Al-Haram, and they are not its guardians? None can be its guardians except Al-Muttaqun (the pious - See V.2:2), but most of them know not.

(58) It is not for a Prophet that he should have prisoners of war (and free them with ransom) until he had made a great slaughter (among his enemies) in the land. You desire the good of this world (i.e. the money of ransom for freeing the captives), but Allah desires (for you) the Hereafter. And Allah is All-Mighty, All-Wise.

(59) Will you not fight a people who have violated their oaths (pagans of Makkah), and intended to expel the Messenger while they did attack you first? Do you fear them? Allah has more right that you should fear Him if you are believers.

(60) They (the disbelievers, the Jews and the Christians) want to extinguish Allah's Light (with which Muhammad صلى الله عليه وسلم has been sent - Islamic Monotheism) with their mouths, but Allah will not allow except that His Light should be perfected even though the Kafirun (disbelievers) hate (it).