to be regretful
לְהִצְטַעֵר
In the present tense, “to be regretful” is מִצְטַעֵר (masculine), מִצְטַעֶרֶת (feminine), מִצְטַעֲרִים (masculine plural) and מִצְטַעֲרוֹת (feminine plural). Root צ-ע-ר, binyan הִתְפַּעֵל.
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