hlustuðu

hlustuðu is the past tense, plural form of the Icelandic verb "hlusta," which means "to listen." Therefore, "hlustuðu" translates to "they listened" or "you all listened" in English. This verb conjugation is used when referring to multiple people or entities that engaged in the act of listening in the past. For example, "Börnin hlustuðu á söguna" would mean "The children listened to the story." The ending "-uðu" is characteristic of the past tense plural for many Icelandic verbs. Understanding these grammatical endings is crucial for comprehending and constructing Icelandic sentences.