Root ن و ب(n w b) has 11 unique word forms and appears 18 times in the Quran.

Word Translation Occurrences
أَنَابَ he turned, turns, turns back 6
أُنِيبُ I turn 4
يُنِيبُ turns 4
مُّنِيبٖ who turns, who turns (to Allah) 4
أَنَبۡنَا we turn 2
مُّنِيبٞ and oft-returning 2
مُنِيبًا turning 2
مُّنِيبِينَ turning 2
۞ مُنِيبِينَ Turning 2
وَأَنَابَ ۩ and turned in repentance 2
وَأَنَابُوٓاْ and turn 2
وَأَنِيبُوٓاْ And turn 2
مُّنِيبٍ returning 2