The article explores why Tuvan language sometimes doesn't use certain word endings after adding possessive endings. This is unusual for Turkic languages, where possessive endings usually require specific word endings. The study found that in Tuvan, the lack of these endings is common after certain possessive endings, especially for first and second person pronouns. However, for third person pronouns, the endings are needed if the object is definite. This suggests that dropping these endings may be for simplicity, except for specific cases. The study also identified some rules about when these endings are dropped, such as with possessive endings and attributes.