There is /There are

Singular:There is

There is a book.		Hay un libro.
There is a boy.		Hay un chico.
There is a table.		Hay una mesa.

There is not a book.		No hay un libro.
There isn't a boy.		No hay un chico.
There isn't a table.		No hay una mesa.

Is there a book?		¿Hay un libro?
Is There a boy?		¿Hay un chico?
Is there a table?		¿Hay una mesa?

Plural:There are

There are books.		Hay libros.
There are boys.		Hay chicos.
There are tables.		Hay mesas.

There are not books.		No hay libros.
There aren't boys.		No hay chicos.
There aren't any tables.		No hay mesas.

Are there books?		¿Hay libros?
Are there boys?		¿Hay chicos?
Are there any tables?		¿Hay mesas?