The word(s) "used" appears 281 time(s) in 264 verse(s) in Quran in Mohsin Khan translation.

(61) Their Salat (prayer) at the House (of Allah, i.e. the Ka'bah at Makkah) was nothing but whistling and clapping of hands. Therefore taste the punishment because you used to disbelieve.

(62) They have purchased with the Ayat (proofs, evidence, verses, lessons, signs, revelations, etc.) of Allah a little gain, and they hindered men from His Way; evil indeed is that which they used to do.

(63) On the Day when that (Al-Kanz: money, gold and silver the Zakat of which has not been paid) will be heated in the Fire of Hell and with it will be branded their foreheads, their flanks, and their backs, (and it will be said unto them): "This is the treasure which you hoarded for yourselves. Now taste of what you used to hoard."

(64) Has not the story reached them of those before them? - The people of Nuh (Noah), 'Ad, and Thamud, the people of Ibrahim (Abraham), the dwellers of Madyan (Midian) and the cities overthrown [i.e. the people to whom Lut (Lot) preached]; to them came their Messengers with clear proofs. So it was not Allah Who wronged them, but they used to wrong themselves.

(65) Then when He gave them of His Bounty, they became niggardly [refused to pay the Sadaqah (Zakat or voluntary charity)], and turned away, averse.

(66) So He punished them by putting hypocrisy into their hearts till the Day whereon they shall meet Him, because they broke that (covenant with Allah) which they had promised to Him and because they used to tell lies.

(67) So let them laugh a little and (they will) cry much as a recompense of what they used to earn (by committing sins).

(68) They (the hypocrites) will present their excuses to you (Muslims), when you return to them. Say (O Muhammad صلى الله عليه وسلم) "Present no excuses, we shall not believe you. Allah has already informed us of the news concerning you. Allah and His Messenger will observe your deeds. In the end you will be brought back to the All-Knower of the unseen and the seen, then He (Allah) will inform you of what you used to do." [Tafsir At-Tabari]

(69) They will swear by Allah to you (Muslims) when you return to them, that you may turn away from them. So turn away from them. Surely, they are Rijs [i.e. Najas (impure) because of their evil deeds], and Hell is their dwelling place - a recompense for that which they used to earn.

(70) And say (O Muhammad صلى الله عليه وسلم) "Do deeds! Allah will see your deeds, and (so will) His Messenger and the believers. And you will be brought back to the All-Knower of the unseen and the seen. Then He will inform you of what you used to do."