The word(s) "repentance" appears 34 time(s) in 34 verse(s) in Quran in Abdullah Yusuf Ali translation.

(31) It may be, if he divorced you (all), that Allah will give him in exchange consorts better than you,- who submit (their wills), who believe, who are devout, who turn to Allah in repentance, who worship (in humility), who travel (for Faith) and fast,- previously married or virgins.

(32) O ye who believe! Turn to Allah with sincere repentance: In the hope that your Lord will remove from you your ills and admit you to Gardens beneath which Rivers flow,- the Day that Allah will not permit to be humiliated the Prophet and those who believe with him. Their Light will run forward before them and by their right hands, while they say, "Our Lord! Perfect our Light for us, and grant us Forgiveness: for Thou hast power over all things."

(33) "It may be that our Lord will give us in exchange a better (garden) than this: for we do turn to Him (in repentance)!"

(34) Those who persecute (or draw into temptation) the Believers, men and women, and do not turn in repentance, will have the Penalty of Hell: They will have the Penalty of the Burning Fire.