How To Say Their In Spanish

Learning how to say their in Spanish is a fundamental step for anyone who wants to communicate possession clearly and accurately in everyday conversation, writing, or academic settings. The English word “their” functions as a possessive adjective or pronoun, and Spanish offers several equivalents that change according to the gender, number, and formality of the noun they modify. Understanding these variations helps learners avoid common mistakes and sound more natural when speaking with native speakers. Below is a practical guide that breaks down the process into clear steps, explains the linguistic rules behind each choice, answers frequently asked questions, and wraps up with a concise conclusion.

Introduction

Possessive expressions in Spanish differ from English because they must agree with the noun they describe, not with the possessor. While English uses the same word “their” for singular and plural possessors, Spanish distinguishes between su (used for both singular and plural possessors) and longer phrases like de ellos or de ellas when clarity is needed. Still, additionally, the formal “you” form (usted/ustedes) also uses su, which can create ambiguity. Mastering how to say their in Spanish therefore requires attention to three main factors: the possessor’s identity, the noun’s gender and number, and the level of formality in the conversation.

Steps to Choose the Correct Form

Follow these steps whenever you need to express possession with “their” in Spanish:

1. Identify the possessor

   • Determine who owns the item. Is it a group of males, a group of females, a mixed group, or a formal “you” (usted/ustedes)?
   • If the possessor is a single person or entity, you will still use su because Spanish does not have a distinct singular possessive for “their” (the concept of a singular “their” does not exist; possession is always attributed to a plural or formal subject).

2. Check the noun’s gender and number

   • Spanish possessive adjectives must match the noun they modify in gender (masculine/feminine) and number (singular/plural).
   • Su and sus are the only forms that change for number: su for singular nouns, sus for plural nouns.
   • Example: su libro (his/her/their book – singular) vs. sus libros (his/her/their books – plural).

3. Decide if ambiguity needs clarification

   • Because su/sus can refer to “his,” “her,” “their,” or “your (formal)”, add a prepositional phrase to avoid confusion when the context is not clear.
   • Use de ellos (for a group of males or mixed gender), de ellas (for a group of females), or de usted/de ustedes (formal “your”).
   • Example: El coche de ellos (their car – when “their” could be confused with “his/her”).

4. Apply the correct form in the sentence

   • Place the possessive adjective directly before the noun, or use the prepositional phrase after the noun if you chose the clarifying option.
   • Sentence structure: [Possessive adjective] + noun or [Noun] + de + pronoun.
   • Example: Su casa es grande (Their house is big) vs. La casa de ellos es grande (Their house is big – clarified).

5. Practice with real‑life examples

   • Create sentences that combine different possessors, nouns, and levels of formality.
   • Repeat aloud to internalize the agreement rules and develop fluency.

By following these five steps, you will consistently choose the right way to say their in Spanish, whether you are speaking informally with friends or writing a formal report Small thing, real impact..

Scientific Explanation

From a linguistic perspective, Spanish possessive adjectives belong to a closed class of determiners that exhibit agreement with the noun they modify. The paradigm for the third‑person plural possessive is:

Notice that the form does not change based on the gender of the possessor; the distinction is purely numeric. This is why su can mean “his,” “her,” “their,” or “your (formal)” depending on context. The language resolves potential ambiguity through pragmatic cues (previous mention, situational knowledge) or by adding the prepositional phrase de + pronoun Less friction, more output..

Some disagree here. Fair enough.

The alternative forms de ellos, de ellas, and de ustedes are possessive constructions that use the preposition de (of) plus a subject pronoun. Because they contain an explicit pronoun, they eliminate ambiguity about the possessor’s gender and number. They function similarly to English “of them” or “of you” and are syntactically noun phrases rather than adjectives. Linguists classify these as periphrastic possessives, contrasting with the synthetic possessive adjectives (su/sus) It's one of those things that adds up..

Agreement rules also extend to possessive pronouns (mío, tuyo, suyo, etc.Day to day, ), which replace the noun entirely and must match the noun’s gender and number in the same way. That's why for example, el libro es suyo (the book is his/hers/theirs/yours‑formal). Understanding the adjective‑pronoun parallel helps learners see why su behaves the way it does.

Boiling it down, the grammatical system behind how to say their in Spanish combines a simple invariant adjective (*su

Boiling it down, the grammatical system behind how to say “their” in Spanish combines a simple invariant adjective (su / sus) with agreement based solely on the noun’s number, while the periphrastic construction de ellos/de ellas/de ustedes removes any lingering ambiguity by inserting an explicit pronoun after the preposition de. The choice between the two patterns hinges on three practical considerations:

1. Clarity over brevity – When the possessor could be confused (e.g., su casa might refer to “his house,” “her house,” “their house,” or “your formal house”), the de ellos/ellas/ustedes form provides an unmistakable reference.
2. Formality and style – The periphrastic version is often preferred in written or highly formal contexts, whereas the concise su/sus is the default in everyday speech.
3. Rhythm and flow – In poetry, song lyrics, or rapid conversation, the compact adjective can be favored to maintain meter or natural cadence.

Quick‑reference cheat sheet

Practical tips for learners

• Listen for context. Native speakers often rely on prior mention or situational cues to disambiguate su versus de ellos. Pay attention to the surrounding dialogue; the meaning will usually become clear.
• Practice both patterns side by side. Create parallel sentences: “Su coche es rojo” vs. “El coche de ellos es rojo.” Noticing the subtle shift in emphasis will cement the distinction.
• Use mnemonic devices. Associate su with the idea of “smooth, silent possession” (no extra words), while de ellos can be remembered as “adding a clear label (them) after de.”
• Write with intention. When drafting formal texts, deliberately choose the periphrastic form whenever the possessor could be misread. This habit will train your intuition for informal speech as well.

By internalizing these patterns—recognizing when the invariant adjective suffices and when the explicit de construction adds needed clarity—you’ll deal with Spanish possession with confidence and precision.

Conclusion
Spanish offers a sleek, number‑based system for expressing “their” through su / sus, complemented by a flexible periphrastic alternative that eliminates ambiguity. Mastering both forms equips you to communicate accurately across registers, from casual conversation to polished writing. Embrace the simplicity of the adjective and the safety of the de construction, and you’ll speak (and write) Spanish with a native‑like command of possession.