Breakdown of En la biblioteca hay un estudiante muy callado que siempre se sienta al fondo.
Questions & Answers about En la biblioteca hay un estudiante muy callado que siempre se sienta al fondo.
Hay means “there is / there are” and is used to introduce the existence of something, usually with an indefinite article (un, una) or no article.
- Hay un estudiante = There is a student (we’re just saying that such a student exists there).
- Está el estudiante would suggest a specific, already known student: The student is there.
- Es is used for permanent characteristics, definitions, professions, etc., not for location like this.
So hay is correct because we’re introducing “a student”, not talking about a specific, previously known one.