Preposiciones de Lugar: Uso de Sobre, Encima y Dentro

Understanding where things are located is one of the most practical skills you can develop in English. Three small words — on, above, and in — allow you to describe the position of virtually any object around you, and learning to use them correctly will make your speech sound natural and precise.

How do you use the preposition "on"?

The preposition on indicates that an object is physically touching a surface [01:07]. Think of a computer sitting on a desk: the computer makes direct contact with the top of the desk, so we say the computer is on the desk. The same logic applies to vertical surfaces — a clock hanging on a wall is touching that wall, so we say the clock is on the wall [01:30].

Another very common use of on is to describe right and left positions [01:50]. When you want to indicate the location of something relative to another object, you say:

• The chair is on the left of the desk.
• The chair is on the right of the desk.

So whenever you need to express that something touches a surface or sits to the right or left of something else, on is the correct choice.

What is the difference between "above" and "on"?

While on requires physical contact, above means that something is at a higher position without touching the surface below it [02:18]. Picture a set of drawers mounted on a wall with a visible gap between them and the desk underneath. Because the drawers do not touch the desk, we say the drawers are above the desk [02:40].

A single object can use both prepositions depending on perspective. A clock, for instance, can be on the wall (it touches the wall) and simultaneously above the desk (it is higher than the desk without touching it) [03:00].

Can you use "above" and "over" interchangeably?

There is a closely related preposition: over. In many cases, above and over share the same meaning [03:15]. You can say:

• This light bulb is over me.
• This light bulb is above me.

Both sentences are correct and convey the same idea of something positioned higher.

When should you use the preposition "in"?

The preposition in is used when something is inside of something else [03:35]. If a microphone is placed inside a drawer, you say the microphone is in the drawer. The same applies to any enclosed space: a box, a bag, a room, or a closet.

Can "in" and "inside" replace each other?

Yes — but only when referring to physically enclosed things [04:00]. You can say:

• The pants are in the closet.
• The pants are inside the closet.

However, be careful with larger, non-enclosed spaces like countries or cities. You must say I am in Mexico, not I am inside Mexico, because a country is not a physically enclosed container [04:10].

How can you practice these prepositions at home?

A great exercise is to look around your own space and describe what you see using on, above, and in [04:40]. For example:

• There is a computer on my desk.
• There is a light above the desk.
• There are some pencils in a pen holder.

Try creating your own sentences, and if possible, take a picture of the objects you describe. Sharing both the sentence and the image will help reinforce the visual connection between the preposition and the position of each object. Go ahead and share your examples in the comments!