Sentence theory in Galician grammar refers to the study of sentence structure and the rules that determine how words are organized within a sentence to convey meaning. In Galician, sentences are typically composed of a subject, a verb, and an object, although this order can vary depending on the emphasis or the specific context.

One important aspect of Galician sentence theory is the agreement between subject and verb. In Galician, the verb must agree with the subject in terms of person and number. For example, if the subject is plural, the verb must also be plural. Additionally, Galician has a rich system of verb conjugation, which includes different tenses, moods, and aspects.

Another aspect of Galician sentence theory is the use of word order to convey meaning. Galician is a flexible language in terms of word order, which means that the subject, verb, and object can be arranged in various ways to highlight different elements or emphasize certain parts of the sentence.

Overall, the study of sentence theory in Galician grammar is essential for understanding how sentences are constructed and how meaning is conveyed in this beautiful language.