1. Hay

2. The verb form "hay" has two meanings:
there is
there are

3. Por ejemplo: Hay un libro en la clase. There is a book in the class.
Hay unas plumas en la mesa.
There are some pens on the table.

4. When used in questions, "hay" has two different meanings:
Is there?
Are there?

5. ¿Hay un lápiz en la mochila?
Is there a pencil in the backpack?
¿Hay plumas en la clase?
Are there pens in the class?

6. Practice on your own: 1. There is a sheet of paper.
Hay una hoja de papel.
2. There is a folder and a pen.
Hay una carpeta y una pluma.
3. There are scissors in the office.
Hay tijeras en la oficina.
4. Is there a pencil in the class?
¿Hay un lápiz en la clase?
5. Is there a calculator in the backpack?
¿Hay una calculadora en la mochila?