A music festival: perfect and imperfect tenses, question forming

Plural nouns are formed in different ways, depending on factors such as gender and how the singular form ends. Ordinal numbers indicate position or order in a list or sequence, e.g., first, second, third; we use them for dates. Questions are formed by inverting subject and verb; a question word can be added to create an open question. ‘Sie’ with the correct verb form should be used when asking questions in formal situations.