Sentence Theory in Nepali Grammar refers to the study of organizing words and phrases together to form meaningful sentences. It is a fundamental aspect of Nepali grammar that helps us understand the structure of a sentence and its various components.

According to Sentence Theory, a Nepali sentence consists of three essential elements: subject (kartaa), predicate (kriyaa), and object (karma). The subject represents the doer of the action, the predicate indicates the action performed by the subject, and the object receives the action.

The subject and object can be nouns, pronouns, or noun phrases, while the predicate can be a verb, adjective, or adverb. Additionally, sentence theory also focuses on the agreement between these elements, maintaining proper word order, and using appropriate case markers to indicate the relation between words.

Understanding Sentence Theory is crucial in the learning process of Nepali language as it helps in constructing correct and meaningful sentences. It provides a framework for organizing words and phrases, enabling effective communication and conveying thoughts accurately.