Preparamos su regreso.

Preparamos is the 1st person plural form of preparar, meaning to prepare.

So it can mean:

• we prepare
• we are preparing

In this sentence, it means we prepare / we are preparing someone’s return.

It can also sometimes mean we prepared in certain contexts, because the present and preterite forms are identical for nosotros in many -ar verbs. You need context to know which one is meant.

In Spanish, some verb forms are spelled the same in the present tense and the preterite.

For preparar:

• preparamos = we prepare / we are preparing
• preparamos = we prepared

This is normal with many -ar verbs in the nosotros form.

Context usually makes it clear:

• Ahora preparamos su regreso = Now we are preparing his/her return
• Ayer preparamos su regreso = Yesterday we prepared his/her return

Su is a possessive adjective meaning:

• his
• her
• its
• your (formal singular)
• their
• sometimes your (plural, depending on region/context)

So su regreso means his return, her return, their return, etc. Spanish often leaves this ambiguous unless the wider context makes it clear.

Because su has to agree with the thing possessed, not with the owner.

Here, regreso is:

• singular
• masculine

So the possessive is su.

Compare:

• su regreso = his/her/their return
• sus regresos = his/her/their returns

It does not change based on whether the person is male or female.

Regreso is a noun meaning return or coming back.

So su regreso means his/her/their return.

It comes from the verb regresar = to return / to come back.

You may also see vuelta in Spanish for return, but regreso is a very common noun and sounds quite natural here.

Because here Spanish is using a noun phrase, not another full verb.

• Preparamos su regreso = literally We prepare his/her return
• Not We prepare that he/she returns

This structure is very natural in Spanish and also possible in English. Spanish often likes this compact noun-based structure.

If you wanted a different structure, you might say something like:

• Preparamos todo para que regrese = We prepare everything so that he/she returns

But that is a different sentence structure.

Yes. It is a complete sentence.

It has:

• a verb: preparamos
• an implied subject: nosotros = we
• a direct object: su regreso

Spanish often omits subject pronouns when the verb already shows who is doing the action.

So Nosotros preparamos su regreso is possible, but normally nosotros is left out unless you want emphasis or contrast.

Because Spanish is a pro-drop language, which means subject pronouns are often omitted.

The verb preparamos already tells you the subject is we.

So:

• Preparamos su regreso = We prepare his/her return
• Nosotros preparamos su regreso = same meaning, but with extra emphasis on we

English usually needs the subject pronoun, but Spanish often does not.

Yes, it could.

In Spanish, su can also mean your in a formal sense:

• su regreso = your return when speaking politely to one person

It can also sometimes refer to you all, depending on variety and context.

So without context, su regreso is ambiguous. In real use, the surrounding conversation tells you whose return is meant.

Yes, if the speaker is talking to more than one person informally in Spain.

In Spain:

• vuestro/vuestra/vuestros/vuestras = your for informal plural you
• su/sus = formal your, and also his/her/their

So:

• Preparamos vuestro regreso = We’re preparing your return (talking to more than one person informally)
• Preparamos su regreso = more likely his/her/their return, or your return in a formal context

This is the most neutral and natural word order in Spanish:

• verb + object

So:

• Preparamos su regreso

Other word orders are possible, but they add emphasis or sound more marked:

• Su regreso lo preparamos nosotros = stronger emphasis, something like It’s his/her return that we are preparing
• Nosotros preparamos su regreso = emphasis on we

The original sentence is the straightforward, neutral version.

No.

The personal a is used before specific people (and sometimes personified animals), not before things or abstract nouns.

Here, regreso is a noun meaning return, so there is no a:

• Preparamos su regreso ✅

Compare with a person:

• Preparamos a su hermano ❓

That would mean something very different, like We prepare his/her brother, which sounds odd unless there is a very specific context.

In standard Peninsular Spanish, it is pronounced approximately:

• reh-GRE-so

A few details:

• the r at the beginning is a soft tapped/flapped sound, not an English r
• the g before e sounds like a strong throaty sound, similar to the ch in Scottish loch or German Bach
• the stress is on gre: re-GRE-so

So Preparamos su regreso would be roughly:

• preh-pah-RAH-mos su reh-GRE-so

It sounds mostly neutral and natural.

• preparamos is everyday Spanish
• su regreso is also standard and natural

Depending on context, it may sound a bit more official or planned than something simpler, because preparar su regreso suggests arranging or organizing someone’s return.

For example, it could fit:

• family context
• travel
• hospital discharge
• military or diplomatic context
• a business or administrative setting

So the sentence is not especially literary, but it can sound slightly formal depending on where it appears.