Lemma اعْتَرَفُ has 3 unique word forms and appears 3 times in the Quran.

Word Translation Occurrences
ٱعۡتَرَفُواْ (who have) acknowledged 2
فَٱعۡتَرَفۡنَا and we confess 2
فَٱعۡتَرَفُواْ Then they (will) confess 2