The word(s) "truly" appears 138 time(s) in 136 verse(s) in Quran in Mohsin Khan translation.

(41) And what think those who invent a lie against Allah, on the Day of Resurrection? [i.e. Do they think that they will be forgiven and excused! Nay, they will have an eternal punishment in the Fire of Hell]. truly, Allah is full of Bounty to mankind, but most of them are ungrateful.

(42) truly! Those, against whom the Word (Wrath) of your Lord has been justified, will not believe.

(43) When they said: "truly, Yusuf (Joseph) and his brother (Benjamin) are dearer to our father than we, while we are a strong group. Really, our father is in a plain error.

(44) He [Ya'qub (Jacob)] said: "truly, it saddens me that you should take him away. I fear lest a wolf should devour him, while you are careless of him."

(45) And she, in whose house he was, sought to seduce him (to do an evil act), and she closed the doors and said: "Come on, O you." He said: "I seek refuge in Allah (or Allah forbid)! truly, he (your husband) is my master! He made my living in a great comfort! (So I will never betray him). Verily, the Zalimun (wrong and evil-doers) will never be successful."

(46) So, when they returned to their father, they said: "O our father! No more measure of grain shall we get (unless we take our brother). So send our brother with us, and we shall get our measure and truly we will guard him."

(47) He [Ya'qub (Jacob)] said: "Nay, but your ownselves have beguiled you into something. So patience is most fitting (for me). May be Allah will bring them (back) all to me. truly He! Only He is All-Knowing, All-Wise."

(48) Then, when they entered unto him [Yusuf (Joseph)], they said: "O ruler of the land! A hard time has hit us and our family, and we have brought but poor capital, so pay us full measure and be charitable to us. truly, Allah does reward the charitable."

(49) And he raised his parents to the throne and they fell down before him prostrate. And he said: "O my father! This is the interpretation of my dream aforetime! My Lord has made it come true! He was indeed good to me, when He took me out of the prison, and brought you (all here) out of the bedouin-life, after Shaitan (Satan) had sown enmity between me and my brothers. Certainly, my Lord is the Most Courteous and Kind unto whom He wills. truly He! Only He is the All-Knowing, the All-Wise.

(50) And indeed We sent Musa (Moses) with Our Ayat (signs, proofs, and evidence) (saying): "Bring out your people from darkness into light, and remind them of the Annals of Allah. truly, therein are Ayat (evidence, proofs and signs) for every patient, thankful (person)."