This document discusses the use of the definite direct object marker "et" in Hebrew and how it changes form depending on the pronoun of the direct object. Specifically: - "Et" indicates a definite direct object and its vowel normally changes to "o" when declined. - When declining "et" to match a direct object pronoun, a letter "vav" is inserted between "et" and the pronoun ending in most cases. - The endings that determine the person and number of the direct object pronoun are the same as those used with the preposition "lamed", except in the third person plural forms. - There are ten total forms provided as examples of the declined "et" plus