Guardo el borrador en el cajón del escritorio.

Guardo is the first-person singular present indicative form of guardar.

So it means I keep, I store, I put away, or in context I keep/store/put the draft in the desk drawer.

Breakdown:

• guardar = to keep, store, put away
• guardo = I keep/store/put away

This is why Spanish does not need yo here. The verb ending -o already tells you the subject is I.

Spanish often omits subject pronouns when they are not needed.

In guardo, the ending -o clearly shows the subject is I, so yo would usually be unnecessary.

• Guardo el borrador... = normal, natural
• Yo guardo el borrador... = also correct, but more emphatic, as if contrasting with someone else

For example:

• Yo guardo el borrador, pero tú guardas la versión final.

So in an ordinary sentence, leaving out yo is the most natural choice.

Guardar suggests putting something away, storing it, or keeping it in a safe/appropriate place.

That is slightly different from:

• poner = to put/place
• dejar = to leave

So:

• Guardo el borrador en el cajón suggests you are putting it away properly or storing it there.
• Pongo el borrador en el cajón focuses more on the physical act of putting it there.
• Dejo el borrador en el cajón can sound more like you are simply leaving it there.

In this sentence, guardar is a very natural choice because a drawer is a typical place where you store something.

In Spanish, articles like el, la, los, and las are used more often than in English.

So even where English might say:

• I keep draft in the drawer (which would already be odd in English)

Spanish normally says:

• Guardo el borrador...

Here el borrador means the draft. The article is needed because Spanish generally uses an article with a singular countable noun in this kind of sentence.

Yes, in this sentence borrador is naturally understood as draft.

A learner might wonder because borrador can have other meanings in some contexts, such as something used for erasing. But in everyday modern Spanish, especially for eraser, people more commonly say:

• goma
• goma de borrar

So in a sentence like this, el borrador is most naturally the draft.

En is the normal preposition for in, inside, on, or at, depending on context.

Here:

• en el cajón = in the drawer

This is the standard and most natural way to say that something is located inside a drawer.

You could also hear:

• dentro del cajón = inside the drawer

But en el cajón is simpler and more common in an ordinary sentence.

Del is the contraction of:

• de + el = del

So:

• el cajón del escritorio = the drawer of the desk / the desk drawer

Spanish requires this contraction whenever de is followed by el:

• de el ❌
• del ✅

A similar contraction also happens with:

• a + el = al

Spanish often expresses noun relationships with de.

So English:

• the desk drawer

becomes Spanish:

• el cajón del escritorio

This structure is extremely common:

• la puerta de la casa = the house door / the door of the house
• el color del coche = the car’s color / the color of the car

Spanish usually prefers this noun + de + noun structure where English often uses a noun directly as an adjective.

Because escritorio is a masculine noun, so it takes el in the singular.

• el escritorio = the desk
• los escritorios = the desks

There is no special rule in this sentence beyond normal gender agreement:

• el borrador
• el cajón
• el escritorio

All three nouns here are masculine singular, so they all use el.

Yes. The Spanish present tense can do both, depending on context.

So Guardo el borrador en el cajón del escritorio can mean:

• I keep the draft in the desk drawer = a usual/habitual fact
• I’m putting the draft in the desk drawer = present action, especially in narration or informal speech

If you want to make the right now meaning more explicit, you could say:

• Estoy guardando el borrador en el cajón del escritorio.

But the simple present is still perfectly normal.

The given word order is the most neutral and natural one:

• Guardo el borrador en el cajón del escritorio.

But Spanish word order is somewhat flexible, especially for emphasis.

For example:

• En el cajón del escritorio guardo el borrador.

This sounds more emphatic or contrastive, as if you are highlighting where you keep it.

So the original sentence is the best default version, but other orders are possible if the speaker wants a different focus.

Yes, you could.

• en el cajón del escritorio = in the desk drawer
• dentro del cajón del escritorio = inside the desk drawer

Both are correct. The version with dentro de is a bit more explicit about being inside. In many everyday situations, en is enough and sounds more natural.

Yes, but the meaning changes slightly.

• en el cajón del escritorio suggests a specific drawer, probably one that both speaker and listener can identify
• en un cajón del escritorio means in one of the desk’s drawers, without specifying which one

So the choice between el and un depends on how specific you want to be.