Italian grammar is the set of rules that govern how words are used and structured in the Italian language. It includes aspects such as nouns, verbs, adjectives, and their agreements in gender and number. For example, nouns can be masculine or feminine, and they change form depending on whether they are singular or plural. Verbs in Italian are conjugated based on the subject and tense, which means their endings change to reflect who is performing the action and when it is happening. Additionally, Italian grammar includes the use of articles, prepositions, and pronouns, all of which help to create clear and meaningful sentences.