"كتبت" is the Arabic word for "I wrote." It is the first-person singular form of the verb "كتب," which means "to write." This verb is commonly used in various contexts, such as writing letters, stories, or notes. In Arabic, verbs are often conjugated to reflect the subject and tense, making "كتبت" specifically indicate that the action was completed in the past. In Arabic grammar, the verb "كتب" belongs to the root system, where three consonants form the basis of many related words. For example, related terms include كتاب (book) and كتابة (writing). Understanding the verb forms and their conjugations is essential for mastering the Arabic language.