Conjugation patterns refer to the systematic ways in which verbs change form to express different grammatical categories such as tense, mood, voice, aspect, person, and number. In languages like Spanish or French, verbs are modified based on the subject pronoun, which indicates who is performing the action. For example, the verb "to be" changes to "am," "is," or "are" in English depending on the subject. These patterns help convey precise meanings and relationships in sentences. Regular verbs typically follow predictable rules, while irregular verbs may have unique forms that must be memorized. Understanding conjugation patterns is essential for effective communication in any language.