The word(s) "had" appears 413 time(s) in 356 verse(s) in Quran in Mohsin Khan translation.

(271) And those who disbelieve say: "We believe not in this Qur'an nor in that which was before it." But if you could see when the Zalimun (polytheists and wrong-doers) will be made to stand before their Lord, how they will cast the (blaming) word one to another! Those who were deemed weak will say to those who were arrogant: "had it not been for you, we should certainly have been believers!"

(272) And those who were arrogant will say to those who were deemed weak: "Did we keep you back from guidance after it had come to you? Nay, but you were Mujrimun (polytheists, sinners, disbelievers, criminals)."

(273) And We had not given them Scriptures which they could study, nor sent to them before you (O Muhammad صلى الله عليه وسلم) any warner (Messenger).

(274) And those before them belied; these have not received even a tenth of what We had granted to those (of old); yet they belied My Messengers. Then how (terrible) was My denial (punishment)!

(275) Say (O Muhammad صلى الله عليه وسلم): "Verily my Lord sends down (Revelation and makes apparent) the truth (i.e. this Revelation that had come to me), the All-Knower of the Ghaib (Unseen).

(276) Nor are (alike) the shade and the sun's heat.

(277) Verily We have sent you with the truth, a bearer of glad tidings and a warner. And there never was a nation but a warner had passed among them.

(278) They will say: "Woe to us! Who has raised us up from our place of sleep." (It will be said to them): "This is what the Most Gracious (Allah) had promised, and the Messengers spoke truth!"

(279) They and their wives will be in pleasant shade, reclining on thrones.

(280) And if it had been Our Will, We would surely have wiped out (blinded) their eyes, so that they would struggle for the Path, how then would they see?