Lemma حَسْرَة has 5 unique word forms and appears 7 times in the Quran.

Word Translation Occurrences
حَسۡرَةٗ a regret 4
حَسَرَٰتٍ (as) regrets 2
حَسَرَٰتٍۚ (in) regrets 2
لَحَسۡرَةٌ (is) surely a regret 2
ٱلۡحَسۡرَةِ (of) the Regret 2
يَٰحَسۡرَةً Alas 2