Hi!

We can use "in" and "on" referring to time or a place.

Place:

"in" = inside something: The notebook is in the drawer. - Put your toys in the box.

"on" = on top of something: The book is on the table. - Put the dictionary on the table.

Time:

"in" - She was born in the spring. She was born in May. She was born in 2000.

"on" - She was born on 20 May 2000.

Hope this helps.

IN se usa cuando se refiere ah que algo esta dentro de oh en 

dos ejemplos tontos serian: The cat is in the house. que seria el gato esta en (dentro de) la casa

oh     the pencil is in the glass. el lapiz esta en (dentro de) el vaso.

en ON se usa cuando es algo que esta encima oh sobre

imaginemos que hay un cuadro colgado en la pared  este seria asi,

The picture is ON the wall. que este seria el cuadro, foto etc. esta en (encima de) la pared7

no se si explique bien oh lo puse de una forma adecuada de igual forma aqui estamos espero te ayude

Thanks, Tunde. You help me so much!

Claro que me ayudaste. Aún tengo dudas, porque son muchas cosas para utilizar in o on. Pero ya he entendido por lo minos lo esencial. Gracias!

Hello there. You mostly use in to describe something that is confined or inside something. Like, for example, He is in the room. Or, the bee is in the hive. You also use in for months or years. She was born in may. It can also work with when you do something. I eat cereal in the morning.

On denotes a position, such as surfaces or the position above our outside an area. For example, I sat on the chair. He had a tattoo on his arm. You also use it to specify. He was born on the 19th of March or See you on Friday. Hope this helps.