Voy a volver a colocar el jarrón sobre el aparador.

They come from two different grammar patterns:

• ir a + infinitive = going to do something
  • voy a colocar = I’m going to place
• volver a + infinitive = to do something again
  • volver a colocar = to place again

So:

• Voy a volver a colocar... = I’m going to place ... again

The two as just happen to appear next to each other because both structures are being used at once.

Volver a + infinitive means to do something again.

In this sentence:

• volver a colocar = to place/put back again

Some examples:

• Voy a volver a llamar. = I’m going to call again.
• Tienes que volver a empezar. = You have to start again.
• Ha vuelto a llover. = It has rained again.

This is a very common Spanish structure.

Both are possible, but voy a + infinitive is extremely common in everyday Spanish, including in Spain.

• Voy a volver a colocar el jarrón... = I’m going to put the vase back...
• Volveré a colocar el jarrón... = I will put the vase back...

The voy a form often sounds more immediate, conversational, and natural in spoken language. The future tense is also correct, but it can sound a bit more formal, more deliberate, or more distant depending on context.

Very often, yes.

Literally, colocar means to place or to position, and volver a colocar means to place again. But in many contexts, natural English would say put back.

So in this sentence, a very natural English idea is:

• I’m going to put the vase back on the sideboard.

Spanish does not always use a direct equivalent of the English phrasal verb put back; instead, it often uses volver a + infinitive.

Yes, you very often could say poner.

• colocar = to place, to position
• poner = to put

So:

• Voy a volver a colocar el jarrón sobre el aparador
• Voy a volver a poner el jarrón sobre el aparador

Both are understandable. In many everyday situations, poner is more common and more general. Colocar can sound a little more careful, deliberate, or slightly more formal, as if you are positioning the object neatly.

Because sobre means on or on top of, while en usually means in or inside.

• sobre el aparador = on the sideboard
• en el aparador = in the sideboard / inside the cabinet

A jarrón is being placed on the surface, not inside it, so sobre makes sense.

In everyday speech, many people might also say:

• encima del aparador

That also means on top of the sideboard and often sounds very natural.

In Spain, aparador usually refers to a piece of furniture such as a sideboard, cabinet, or dresser-like unit, often found in a dining room or living room.

It is the kind of furniture you might place decorative objects on, such as:

• a vase
• photo frames
• candles

So in this sentence, aparador is the surface or furniture top where the vase is being placed.

Because el refers to a specific vase and a specific sideboard that are already known from the context.

• el jarrón = the vase
• el aparador = the sideboard

If you said un jarrón, it would sound like a vase, meaning any vase or a vase not yet identified.

Spanish uses definite articles very naturally when the speaker and listener both know which object is being talked about.

In this case, yes: jarrón is masculine, so it takes el.

Many nouns ending in -ón are masculine:

• el avión
• el corazón
• el sillón
• el jarrón

But as always, gender has to be learned noun by noun, because there are exceptions in Spanish overall. For jarrón, the correct form is definitely el jarrón.

The accent mark shows where the stress falls:

• ja-RRÓN

Without the accent, Spanish pronunciation rules would make you stress it differently. The written accent tells you clearly that the final syllable is stressed.

This is also useful when the word changes:

• singular: jarrón
• plural: jarrones

Notice that in the plural, the written accent disappears because the normal stress pattern changes naturally:

• ja-RRO-nes

Yes, often you can.

For example:

• Voy a colocar de nuevo el jarrón sobre el aparador.

This also means I’m going to place the vase on the sideboard again.

However, volver a + infinitive is one of the most common and natural ways to express again with an action in Spanish. It is usually the structure learners should get comfortable with first.

The given order is natural and correct, but Spanish does allow some flexibility.

Standard order here:

• Voy a volver a colocar el jarrón sobre el aparador.

You might also hear:

• Voy a volver a colocar sobre el aparador el jarrón.

That version is grammatical, but it sounds less neutral and may place extra focus on sobre el aparador or on el jarrón depending on context.

For most learners, the original word order is the safest and most natural choice.