This document discusses indefinite pronouns in Portuguese including some, any, no, and none. It provides examples of how to use these pronouns in affirmative, interrogative, and negative sentences. Some key uses include: - Some is used affirmatively to indicate a small or unspecified amount or number. - Any is used interrogatively to ask about the possibility of something and negatively to indicate none or not any. - No and none are used to indicate an absence of something in affirmative sentences. None is never used with a noun while no can be used with or without a noun. The document concludes with examples applying the indefinite pronouns in short sentences and questions.