"Ми" is a pronoun in the Ukrainian and Russian languages that translates to "we" in English. It is used to refer to a group of people that includes the speaker. This pronoun is essential for forming sentences that express collective actions or thoughts. In grammar, "ми" can change form based on the case used in a sentence. For example, in the nominative case, it remains "ми," but in the genitive case, it becomes "нас." Understanding how to use "ми" correctly is important for effective communication in Ukrainian and Russian.