The Spanish upside-down question mark, also known as the inverted question mark, is a punctuation mark used in Spanish to indicate the beginning of an interrogative sentence. It is written as an upside-down question mark () and is placed at the beginning of a question, before the first word. For example: “Cmo ests?” (How are you?).
The Spanish upside-down question mark is important because it helps to distinguish between declarative sentences and interrogative sentences. In Spanish, declarative sentences end with a period (.), while interrogative sentences end with an upside-down question mark (). This helps to make it clear to the reader whether a sentence is a statement or a question.