Stem مُفْسِدِينَ has 4 unique word forms and appears 18 times in the Quran.

Word Translation Occurrences
ٱلۡمُفۡسِدِينَ (of) the corrupters, the corrupters 20
مُفۡسِدِينَ (as) corrupters, spreading corruption 10
بِٱلۡمُفۡسِدِينَ of the corrupters 4
كَٱلۡمُفۡسِدِينَ like those who spread corruption 2