This paper critically examines previous studies that regarded itta as one of the lexical items which converse their part of speech from adjective into verb. Although usages of itta illustrate inflectional forms of verb as well as adjective, these conjugational features are strongly related to the animacy or person of subject nouns. The meaning of itta covers both possession and location. Itta inflects like a verb when it means location whereas it only inflects like an adjective when it means possession. However, itta does not always conjugate like a verb when it means possession. The verbal inflection of itta is limited to the sentences that have certain type of subjects: animate nouns, the first person nouns in declarative sentences, the second person nouns in imperative sentences, and the first person plural nouns in hortatory sentences. In addition, the verbal inflection of itta can be replaced by that of adjective. Most of other lexical items that change their part of speech do not share these features. Previous studies classified itta as a verb when it takes imperative or hortatory endings, or when it is modified by an adverb of manner such as jal. Yet these features are also found in the usages of some adjectives therefore do not support the idea of classifying itta as a verb. In conclusion, we argue that itta should be categorized as an adjective exclusively since its verbal use merely reflects temporary phenomena which originated from semantic features of subject nouns that enhance intentionality including animacy or person.