To pronounce past tense regular verbs – verbs that end in “ed” – correctly, we should know if the verb ends in a Voiced sound or a Voiceless (in another word, Unvoiced) sound as we learned and took the quiz many years ago. Then, what do Voiced and Voiceless (Unvoiced) mean? You can understand what they mean by putting your hand on the front of your neck as shown in the video below.