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A1 determiner #150 most common 11 min read

Su

Top 150

Practice it Examples Notes & Tips Su in 30 Seconds

Explanation Su in your Level:

At the A1 level, 'su' is introduced as the way to say 'his' or 'her'. Students learn that Spanish doesn't distinguish between a male owner and a female owner with this word. The focus is on simple sentences like 'Su nombre es Juan' or 'Su casa es grande'. At this stage, learners also learn that 'su' becomes 'sus' if the object is plural, which is a major difference from English. The concept of 'su' as a formal 'your' is also introduced early on, usually in the context of meeting someone new and asking '¿Cuál es su teléfono?' or '¿Cómo se llama su hijo?'. The primary goal for A1 is to stop trying to use 'he' or 'she' logic and simply accept 'su' as the universal third-person possessive. Exercises at this level usually involve matching 'su' with singular nouns and 'sus' with plural nouns, and identifying if the sentence is talking about one person or multiple people based on the surrounding context.

At the A2 level, the use of 'su' expands to include 'their' and the plural formal 'your' (ustedes). Learners begin to encounter more sentences where the context is slightly more complex, requiring them to look back at the previous sentence to identify the owner. A2 students are also taught the 'de él / de ella' clarification method, though they are encouraged to use 'su' first unless it's truly confusing. This level also introduces the 'usted' vs 'tú' distinction more deeply, helping students decide when to use 'su' versus 'tu'. They start to see 'su' in more varied contexts, such as describing family members or talking about daily routines in the third person. The agreement rule (su vs sus) should be becoming second nature by now, but common mistakes still occur when students are distracted by the gender of the noun (thinking 'su' needs to end in 'a' for feminine nouns, which it does not).

By B1, learners are expected to use 'su' and 'sus' fluently in a variety of tenses. They start to understand the nuance of when *not* to use 'su', particularly with reflexive verbs and body parts (e.g., 'Se puso su chaqueta' vs 'Se puso la chaqueta'). B1 students also learn about possessive pronouns like 'suyo', 'suya', 'suyos', and 'suyas', and how they differ from the adjective 'su'. They begin to see 'su' in more abstract contexts, such as 'su importancia' (its importance) or 'su origen' (its origin). The focus shifts from basic ownership to expressing relationships between ideas. At this level, students should be able to navigate a conversation where 'su' refers to different people in quick succession without getting lost. They also start to recognize regional variations in how formal 'su' is used in different Spanish-speaking countries.

At the B2 level, students explore the stylistic and idiomatic uses of 'su'. They learn phrases where 'su' is part of a fixed expression, such as 'a su manera' (in his/her own way) or 'en su momento' (in its/his/her due time). They also study the use of 'su' in formal writing and literature, where it can be used to create a specific tone. B2 learners are expected to have a firm grasp on the 'de + pronoun' clarification and use it naturally to avoid the ambiguity that 'su' can cause in complex narratives. They also study the 'redundant' possessive, which is common in some dialects, and learn to distinguish between standard and non-standard usage. The focus is on achieving a high level of precision and avoiding the 'translated' feel that comes from overusing 'su' in places where a native speaker would use a definite article.

C1 learners delve into the historical and linguistic roots of 'su', understanding how it evolved from Latin. They study its use in legal and administrative Spanish, where 'su' must be used with extreme care to ensure legal clarity. At this level, students analyze how 'su' can be used for rhetorical effect, such as in political speeches or persuasive essays. They also explore the use of 'su' in various Spanish dialects, including those that use 'vuestro' and how that interacts with the 'su' system. C1 students are expected to be able to explain the grammatical function of 'su' to others and to recognize subtle errors in its usage in complex texts. They also look at how 'su' is used in poetry and song lyrics to create rhythm or double meanings, taking advantage of its inherent ambiguity.

At the C2 level, mastery of 'su' is absolute. The learner understands the most obscure uses, such as the 'su' of respect in archaic titles or its use in very specific regional idioms. They can navigate the most complex legal documents where multiple 'sus' might refer to different parties, and they can do so without confusion. C2 speakers can use 'su' to play with language, intentionally creating ambiguity for comedic or literary effect. They have a deep understanding of the prosody and rhythm that 'su' brings to a sentence and can choose between 'su' and its alternatives based on the desired cadence of their speech or writing. At this stage, the word 'su' is no longer a 'rule' to be followed but a versatile tool to be wielded with artistry and precision in any context, from the streets of Madrid to the boardrooms of Mexico City.

Practice it Examples Notes & Tips

Su in 30 Seconds

Su is the primary possessive word in Spanish for 'his', 'her', 'its', 'their', and the formal 'your'.
It only changes to 'sus' if the items being owned are plural, regardless of how many owners there are.
Because it has many meanings, context is vital, or you can use 'de él/ella' for clarity.
It is never used with articles (el/la) and usually comes before the noun it modifies.

The Spanish word su is perhaps one of the most versatile and, paradoxically, one of the most potentially confusing words for English speakers beginning their Spanish journey. At its core, su is a possessive determiner. In English, we have distinct words for different owners: 'his', 'her', 'its', 'their', and 'your'. Spanish, in a display of extreme linguistic efficiency (or ambiguity, depending on your perspective), collapses all of these into the single word su. Understanding su requires a shift in how you think about possession; you must look at the context of the conversation to identify the owner, while the word itself only changes based on the quantity of the items owned.

The Third-Person Umbrella: The word 'su' acts as the primary possessive for the third person. This includes 'él' (him), 'ella' (her), and 'ellos/ellas' (them). If you are talking about Juan and his car, you use 'su coche'. If you are talking about Maria and her car, you also use 'su coche'. If you are talking about the neighbors and their car, you still use 'su coche'. The word does not change based on the gender or number of the owners.

Juan lee su libro en el parque.

The Formal 'Your': In addition to 'his', 'her', and 'their', 'su' is the possessive form for 'usted' and 'ustedes'. When you are speaking to someone formally (like a boss, a stranger, or an elder), you use 'su' to mean 'your'. This distinguishes it from the informal 'tu'. For example, '¿Cuál es su nombre?' is the formal way to ask 'What is your name?'.

Señor García, su café está listo.

Ambiguity and Clarity: Because 'su' can mean so many things, Spanish speakers often use the construction 'de + pronoun' to clarify. Instead of saying 'su casa' (which could be his, hers, or yours), they might say 'la casa de él' or 'la casa de usted' to remove any doubt. This is especially common when the context hasn't established who the owner is.

Ella tiene su propia opinión sobre el tema.

Los niños olvidaron sus mochilas en la escuela.

In summary, 'su' is the workhorse of Spanish possession. It bridges the gap between different genders and numbers of owners, focusing instead on the relationship between the owner and the object. Whether you are describing a friend's hobby, a boss's office, or a group's collective decision, 'su' is the tool you will reach for most often. Mastering it involves learning to listen for the context that defines who 'su' is referring to in any given sentence.

Using su correctly involves understanding the grammatical relationship between the possessor and the possessed object. In Spanish, possessive adjectives like su must agree in number with the noun they modify. This is a common stumbling block for English speakers, who are used to the possessive word changing based on the owner (e.g., 'his' vs. 'their'). In Spanish, the owner is irrelevant to the spelling of the word; only the object matters.

Singular vs. Plural Objects: If the object being possessed is singular, you use 'su'. If the objects are plural, you use 'sus'. This applies regardless of whether one person or many people own the items. For example, 'su libro' could mean 'his book' or 'their book'. 'Sus libros' could mean 'his books' or 'their books'. The 's' at the end of 'sus' only tells us there is more than one book.

El profesor explicó su teoría a los alumnos.

Placement in the Sentence: Possessive adjectives like 'su' almost always come before the noun they describe. They function similarly to articles (el, la, un, una). You cannot use 'su' and an article together. It is 'su casa', not 'la su casa'. This placement is consistent across all levels of formality and regional dialects of Spanish.

¿Han traído sus documentos para la entrevista?

Usage with Body Parts: A unique rule in Spanish is that you rarely use 'su' with body parts or clothing when the owner is the subject of the sentence. Instead of saying 'Él se lava su cara' (He washes his face), Spanish speakers say 'Él se lava la cara' (He washes the face). The reflexive verb 'se lava' already indicates whose face it is. Using 'su' in this context sounds redundant or like the face belongs to someone else.

La empresa aumentó su producción este trimestre.

Cada país tiene su propia bandera y escudo.

When constructing sentences, always ask yourself: 1. Who is the owner? (This tells you to use 'su' or 'sus' rather than 'mi' or 'tu'). 2. How many things are owned? (This tells you whether to add the 's'). 3. Is the context clear? (This tells you if you need to add 'de él/ella/ellos' for clarity). By following these three steps, you will use 'su' with the precision of a native speaker.

The word su is ubiquitous in the Spanish-speaking world. You will hear it in every possible setting, from the most formal diplomatic meetings to casual family dinners. However, the 'flavor' of its usage can change depending on where you are and who you are talking to. Because it covers both third-person possession and formal second-person possession, its frequency is incredibly high.

In Professional Environments: In a business setting, 'su' is the standard way to address colleagues and clients respectfully. You will hear phrases like '¿Recibió su correo?' (Did you receive your email?) or 'Aquí tiene su contrato' (Here is your contract). In these cases, 'su' is the possessive form of 'usted'. Using 'tu' in these contexts might be seen as overly familiar or even disrespectful depending on the local culture.

Estimado cliente, su pedido ha sido enviado.

In News and Media: Journalists use 'su' constantly to refer to public figures. 'El presidente anunció su renuncia' (The president announced his resignation). Because news reports are often about 'him', 'her', or 'them', 'su' and 'sus' appear in almost every sentence. It provides a neutral, objective way to link people to their actions, belongings, or statements.

La actriz agradeció a su público por el apoyo.

In Customer Service: When you enter a shop or a restaurant in a Spanish-speaking country, the staff will almost certainly address you using 'su'. '¿Cuál es su talla?' (What is your size?) or '¿Desea su cuenta ahora?' (Would you like your bill now?). This use of 'su' creates a professional distance that is standard in service industries.

Bienvenidos, por favor tomen sus asientos.

El perro movía su cola con alegría al ver al dueño.

Whether you are reading a novel where the author describes a character's 'su mirada' (their gaze) or listening to a flight attendant give instructions about 'sus pertenencias' (your belongings), 'su' is the linguistic glue of Spanish possession. It is a word that requires you to be present in the conversation, as its meaning is entirely dependent on the world around it.

For English speakers, the simplicity of su is actually its greatest challenge. Because one word replaces five English words, learners often fall into predictable traps. Recognizing these mistakes early is key to developing a natural-sounding Spanish flow.

Mistake 1: Matching the Owner, Not the Object: The most frequent error is using 'sus' because there are multiple owners. For example, a student might say 'Ellos tienen sus casa' because 'ellos' is plural. This is incorrect. It should be 'Ellos tienen su casa' because there is only one house. Remember: the 's' on 'sus' only appears if the thing being owned is plural.

Incorrecto: Ellos aman a sus perro. (They love their dog - wrong pluralization)

Mistake 2: Confusing 'Su' with 'Tu': In English, 'your' is always 'your'. In Spanish, you must choose between 'tu' (informal) and 'su' (formal). Learners often use 'su' with friends or 'tu' with their boss. This can lead to awkward social situations. 'Tu' is for people you know well, children, and pets. 'Su' is for everyone else when you want to be polite.

Incorrecto: Mamá, ¿dónde está su bolso? (Too formal for a mother in most cultures)

Mistake 3: Overusing 'Su' with Body Parts: English speakers naturally want to say 'He put his hand in his pocket' as 'Él puso su mano en su bolsillo'. While technically understandable, it sounds very 'gringo'. Native speakers prefer 'Él se puso la mano en el bolsillo'. Using 'su' for things clearly attached to the body is a hallmark of a learner's speech.

Incorrecto: Ella se cepilla sus dientes. (Correct: Ella se cepilla los dientes)

Incorrecto: El gato perdió el su juguete. (Never use articles with 'su')

By avoiding these pitfalls—matching the object's number, choosing the right level of formality, and using articles for body parts—you will quickly move past the 'beginner' phase of using possessives. Pay close attention to how native speakers use 'su' and 'sus' in movies or podcasts, and you'll notice they are much more selective with it than English speakers are with 'his' or 'her'.

While su is the most common possessive, it is not the only way to express ownership in Spanish. Depending on the emphasis you want to give or the need for clarity, you might choose a different construction. Understanding these alternatives will make your Spanish more precise and sophisticated.

Su vs. Tuyo/Suyo (Possessive Pronouns): 'Su' is a possessive adjective, meaning it must come before a noun (su casa). 'Suyo' is a possessive pronoun or a long-form adjective used for emphasis or when the noun is omitted. You use 'suyo' after the verb 'ser' or after the noun. For example: 'La casa es suya' (The house is theirs/his/hers) or 'Un amigo suyo' (A friend of theirs).

Este libro no es mío, es suyo.

Su vs. De + Pronoun (The Clarity Alternative): As mentioned before, 'su' is ambiguous. To be 100% clear, Spanish speakers often replace 'su' with 'artículo + sustantivo + de + pronombre'. Instead of 'su coche', you say 'el coche de ella' (her car) or 'el coche de ellos' (their car). This is not just an alternative; in many contexts, it is the preferred way to speak to avoid confusion.

He visto el coche de él en el garaje.

Su vs. Tu (The Formality Choice): When 'su' means 'your', its alternative is 'tu'. The choice is entirely based on the relationship. Use 'tu' for friends, family, and peers. Use 'su' for strangers, authorities, and in professional settings. In Spain, 'tu' is used more broadly than in many Latin American countries, where 'su' (usted) remains the standard for almost everyone outside the immediate family.

¿Es este tu lápiz? (Informal) vs. ¿Es este su lápiz? (Formal)

El gato siempre busca su comida a las seis.

By learning when to use 'su', when to clarify with 'de él', and when to switch to the informal 'tu', you gain full control over the nuances of Spanish possession. Each choice tells the listener something about your relationship with the owner and the level of precision you intend to convey.

How Formal Is It?

Formal

"Le agradecemos su participación en el evento."

Neutral

"Él dejó su abrigo en la entrada."

Informal

"¿Has visto a su hermano?"

Child friendly

"El conejito busca su zanahoria."

Slang

"Ese tipo está en su rollo."

Fun Fact

In Old Spanish, 'su' had different forms like 'so' or 'sua', but it eventually simplified into the single form we use today for all genders.

Pronunciation Guide

UK /su/

US /su/

Monosyllabic; no specific stress, though it is usually unstressed in a sentence.

Rhymes With

tú luz menú tabú tisú vermut virtud salud

Common Errors

Pronouncing it like the English name 'Sue' with a diphthong (su-oo).
Making the 's' sound too voiced like a 'z'.
Over-stressing the word in a sentence; it should flow into the noun.
Confusing it with 'si' (if/yes) in fast speech.
Mixing it up with 'so' (rarely used in Spanish).

Difficulty Rating

Reading 1/5

Very easy to recognize, though context is needed for meaning.

Writing 2/5

Easy, but learners often forget to pluralize to 'sus'.

Speaking 2/5

Requires quick thinking to choose between 'tu' and 'su'.

Listening 3/5

Can be confusing in fast speech when multiple people are discussed.

What to Learn Next

Prerequisites

él ella usted mi tu

Learn Next

nuestro vuestro suyo mío

Advanced

cuyo el cual propio

Grammar to Know

Possessive Agreement

Su libro (1 book), Sus libros (2+ books).

Usted Formality

Use 'su' with 'usted' and 'tu' with 'tú'.

Reflexive Body Parts

Use 'la mano' instead of 'su mano' with reflexive verbs.

Clarification with 'de'

Use 'la casa de él' if 'su casa' is ambiguous.

No Articles

Never say 'el su coche', only 'su coche'.

Examples by Level

Juan tiene un perro. Su perro es grande.

Juan has a dog. His dog is big.

'Su' refers to Juan's dog.

Ella busca su llave.

She is looking for her key.

'Su' is singular because there is only one key.

Señor, ¿es este su coche?

Sir, is this your car?

'Su' is the formal 'your' for 'usted'.

Mis amigos viven en su casa.

My friends live in their house.

'Su' means 'their' here.

La niña juega con su muñeca.

The girl plays with her doll.

'Su' agrees with 'muñeca'.

Él escribe en su cuaderno.

He writes in his notebook.

'Su' is used before the noun 'cuaderno'.

Usted tiene su pasaporte, ¿verdad?

You have your passport, right?

Formal 'your' (su) used with 'usted'.

El gato come su comida.

The cat eats its food.

'Su' can mean 'its' for animals or objects.

Ellos perdieron sus maletas en el aeropuerto.

They lost their suitcases at the airport.

'Sus' is plural because 'maletas' is plural.

María y su hermano van al cine.

Maria and her brother are going to the cinema.

'Su' refers to Maria's brother.

Doctor, necesito su ayuda.

Doctor, I need your help.

Formal 'your' (su) used for a professional.

Cada estudiante debe traer su libro.

Each student must bring their book.

'Su' refers to each individual student's book.

Los árboles pierden sus hojas en otoño.

The trees lose their leaves in autumn.

'Sus' agrees with 'hojas'.

Ella me dio su número de teléfono.

She gave me her phone number.

'Su' refers to 'ella'.

Ustedes deben entregar sus exámenes ahora.

You (plural) must hand in your exams now.

'Sus' is the plural 'your' for 'ustedes'.

El hotel es famoso por su comida.

The hotel is famous for its food.

'Su' refers to the hotel's food.

El autor firmó su nuevo libro para los fans.

The author signed his new book for the fans.

'Su' refers to the author.

La empresa cambió su política de privacidad.

The company changed its privacy policy.

'Su' refers to the company (la empresa).

A pesar de su edad, ella corre maratones.

Despite her age, she runs marathons.

'Su' refers to 'ella'.

Los científicos presentaron sus hallazgos ayer.

The scientists presented their findings yesterday.

'Sus' refers to the plural findings.

Él siempre hace las cosas a su manera.

He always does things his way.

Idiomatic use: 'a su manera'.

La ciudad es conocida por sus monumentos históricos.

The city is known for its historical monuments.

'Sus' refers to the city's monuments.

Ella no quiere hablar de su pasado.

She doesn't want to talk about her past.

'Su' refers to 'ella'.

Ustedes tienen sus propias razones para estar aquí.

You (plural) have your own reasons for being here.

'Sus' refers to 'ustedes'.

El gobierno defendió su postura ante la crisis.

The government defended its position regarding the crisis.

'Su' refers to the government's stance.

Cada cual es dueño de su propio destino.

Everyone is the master of their own destiny.

Abstract use of 'su' with 'cada cual'.

La orquesta terminó su gira en Madrid.

The orchestra finished its tour in Madrid.

'Su' refers to the orchestra (singular collective noun).

Él no pudo ocultar su asombro al ver el regalo.

He couldn't hide his amazement upon seeing the gift.

'Su' refers to the man's emotion.

Las abejas protegen su colmena con ferocidad.

Bees protect their hive with ferocity.

'Su' refers to the collective hive.

Ella ha dedicado su vida a la investigación médica.

She has dedicated her life to medical research.

'Su' refers to 'ella'.

El edificio destaca por su arquitectura vanguardista.

The building stands out for its avant-garde architecture.

'Su' refers to the building's architecture.

Ustedes deben ser conscientes de sus responsabilidades.

You (plural) must be aware of your responsibilities.

'Sus' refers to the responsibilities of 'ustedes'.

La obra literaria brilla por su profundidad psicológica.

The literary work shines for its psychological depth.

Formal/Academic use of 'su'.

El acusado mantuvo su inocencia durante todo el juicio.

The accused maintained his innocence throughout the trial.

Legal context for 'su'.

La teoría perdió su vigencia con los nuevos descubrimientos.

The theory lost its validity with the new discoveries.

Abstract possessive 'su vigencia'.

El artista se inspiró en su entorno para crear la escultura.

The artist was inspired by his surroundings to create the sculpture.

'Su entorno' refers to the environment around the artist.

La sociedad debe enfrentar sus miedos más profundos.

Society must face its deepest fears.

'Sus' refers to the plural 'miedos' of the society.

El líder político reafirmó su compromiso con la paz.

The political leader reaffirmed his commitment to peace.

'Su' refers to the leader's commitment.

La película cautivó al público con su banda sonora.

The movie captivated the audience with its soundtrack.

'Su' refers to the movie's soundtrack.

Usted, en su calidad de experto, debería opinar.

You, in your capacity as an expert, should give an opinion.

Formal expression: 'en su calidad de'.

La lengua española es rica en su diversidad dialectal.

The Spanish language is rich in its dialectal diversity.

High-level linguistic description.

El filósofo cuestionó la realidad y su percepción.

The philosopher questioned reality and its perception.

'Su' refers back to 'la realidad'.

La empresa ha sabido gestionar su capital humano.

The company has known how to manage its human capital.

Business jargon: 'capital humano'.

El poema destaca por su métrica y su rima asonante.

The poem stands out for its meter and its assonant rhyme.

Literary analysis using 'su'.

La nación busca recuperar su soberanía económica.

The nation seeks to recover its economic sovereignty.

Political/Economic context.

El director imprimió su sello personal en cada escena.

The director imprinted his personal stamp on every scene.

Metaphorical use of 'sello' (stamp/style).

La investigación alcanzó su punto álgido el mes pasado.

The investigation reached its peak last month.

Idiomatic: 'punto álgido'.

Su Excelencia ha decidido posponer la audiencia.

His/Your Excellency has decided to postpone the hearing.

Archaic/Formal title usage.

Common Collocations

su nombre

su casa

su familia

su trabajo

su tiempo

su vida

su opinión

su lugar

su hijo

su dinero

Common Phrases

A su salud

— A common toast meaning 'To your health'.

¡A su salud, señores!

En su lugar

— In his/her/its place or 'instead'.

Yo, en su lugar, no iría.

A su manera

— In his/her own way.

Él vive la vida a su manera.

Por su cuenta

— On his/her own or independently.

Ella trabaja por su cuenta.

En su momento

— At the right time or in due course.

Te lo diré en su momento.

A su disposición

— At your/his/her disposal.

Estoy a su entera disposición.

Cada cual a su casa

— Everyone to their own home (time to leave).

Se acabó la fiesta, cada cual a su casa.

Su Excelencia

— A formal title: His/Her/Your Excellency.

Su Excelencia llegará pronto.

De su parte

— On his/her behalf.

Vengo de su parte.

A su antojo

— As he/she pleases or at will.

Él hace todo a su antojo.

Often Confused With

Su vs tu

Tu is informal 'your', while su is formal 'your' or 'his/her/their'.

Su vs sí

Sí means 'yes', but 'su' is a possessive. They sound different but can be confused by beginners.

Su vs sé

Sé is 'I know' or a command, unrelated to possession.

Idioms & Expressions

"Cada loco con su tema"

— To each their own or everyone has their obsessions.

Él solo habla de barcos; cada loco con su tema.

informal

"A su amor"

— Slowly and carefully (literally 'at its love').

Cocina la carne a su amor.

colloquial

"En su salsa"

— In one's element.

Cuando habla de historia, está en su salsa.

informal

"Poner a alguien en su sitio"

— To put someone in their place.

Ella lo puso en su sitio tras el insulto.

neutral

"Zapatero a tus zapatos (variant: a su zapato)"

— Stick to what you know.

No opines de medicina; zapatero a su zapato.

proverb

"Caer por su propio peso"

— To be obvious or self-evident.

La verdad caerá por su propio peso.

neutral

"En su sano juicio"

— In one's right mind.

Nadie en su sano juicio haría eso.

neutral

"Dar a cada uno lo suyo"

— To give everyone their due.

La justicia debe dar a cada uno lo suyo.

formal

"A su pesar"

— Despite oneself or against one's will.

Tuvo que ir, a su pesar.

neutral

"Estar en su derecho"

— To be within one's rights.

Usted está en su derecho de reclamar.

formal

Easily Confused

Su vs tú

Both are second-person related.

Tú is the pronoun 'you'. Su is the possessive 'your' (formal) or 'his/her'.

Tú tienes su libro (You have his book).

Su vs tu

Both mean 'your'.

Tu is for friends (informal). Su is for strangers/bosses (formal).

Tu perro (informal) vs Su perro (formal).

Su vs sus

Learners think 'sus' means 'their'.

Sus means 'his/her/their' ONLY if the objects are plural.

Su casa (their house) vs Sus casas (their houses).

Su vs suyo

Both are possessive.

Su comes before the noun. Suyo comes after or stands alone.

Su libro vs El libro suyo.

Su vs si

Similar short sound.

Si means 'if'. Su means 'his/her'.

Si él trae su coche... (If he brings his car...).

Sentence Patterns

Su [sustantivo] es [adjetivo].

Su casa es roja.

¿Es este su [sustantivo]?

¿Es este su perro?

Ellos tienen sus [sustantivo plural].

Ellos tienen sus llaves.

Usted necesita su [sustantivo].

Usted necesita su pasaporte.

A pesar de su [sustantivo]...

A pesar de su esfuerzo...

[Verbo] a su manera.

Canta a su manera.

El [sustantivo] destaca por su [sustantivo].

El cuadro destaca por su color.

En su calidad de [título]...

En su calidad de director...

Word Family

Adjectives

How to Use It

frequency

Extremely high; ranked in the top 50 most common Spanish words.

Common Mistakes

Using 'sus' for multiple owners of one item. → Ellos tienen su casa.
Even if there are many owners, if they own only one house, you must use 'su'.
Using 'su' for informal 'your'. → Tu libro está aquí.
Use 'tu' for friends. 'Su' is too formal for close relationships.
Saying 'el su perro'. → Su perro.
Possessive adjectives cannot be used with definite articles in Spanish.
Using 'su' with reflexive body parts. → Ella se lava las manos.
Spanish uses definite articles (las) for body parts when the action is reflexive.
Changing 'su' to 'sa' for feminine nouns. → Su hija.
'Su' is gender-neutral. It does not have a feminine form like 'sa' in French.

Tips

The Number Rule

Always match 'su' to the thing owned. One cat? Su gato. Two cats? Sus gatos. The owner's number doesn't change the word.

The 'De' Trick

If 'su' is confusing, swap it! Instead of 'su coche', say 'el coche de él' or 'el coche de ella'. It sounds perfectly natural.

Formal 'Your'

Use 'su' when talking to someone you would call 'Señor' or 'Señora'. It shows you are polite and well-mannered.

Context is King

When you hear 'su', look at the person the speaker is looking at. That's usually the owner!

No Articles!

Never put 'el' or 'la' before 'su'. It's a common English-speaker mistake. Just 'su' + noun.

Third Person Only

Remember 'su' is only for 3rd person (him/her/them) and formal 2nd person (you). Never use it for 'my' or 'our'.

Body Parts

Avoid 'su' with body parts if the action is reflexive. 'Se toca la nariz' is better than 'Se toca su nariz'.

Latin America vs Spain

In Latin America, 'su' is used for 'you all' in every situation. In Spain, it's only for formal 'you all'.

Short and Sweet

The 'u' in 'su' is very short. Don't drag it out like 'soooooo'. It should be a quick 'su'.

Possessive Pronouns

Once you master 'su', try using 'suyo' for emphasis. '¡Es problema suyo!' (It's HIS problem!).

Memorize It

Mnemonic

Think of 'SU' as 'Super Universal' because it covers so many people (him, her, them, you).

Visual Association

Imagine a giant umbrella labeled 'SU' covering a man, a woman, a group of people, and a formal businessman.

Word Web

él ella usted ellos ellas ustedes posesión sus

Challenge

Try to write five sentences about five different people (a friend, a boss, a cat, a group, and a lady) using 'su' in every sentence.

Word Origin

Derived from the Latin possessive pronoun 'suus', which meant 'his own', 'her own', or 'its own'. In Latin, it was reflexive, but in the transition to Romance languages, it became the general third-person possessive.

Original meaning: His own / belonging to himself.

Indo-European > Italic > Romance > Ibero-Romance > Spanish.

Cultural Context

Be careful using 'tu' when 'su' (formal) is expected, as it can be seen as patronizing or rude.

English speakers struggle because they want a different word for 'his' and 'her'. They must learn to rely on context.

The song 'A su manera' (The Spanish version of 'My Way'). The phrase 'Su casa es mi casa' (often reversed as 'Mi casa es su casa'). Titles like 'Su Santidad' (His Holiness) for the Pope.

Practice in Real Life

Real-World Contexts

Introductions

¿Cuál es su nombre?
Le presento a su guía.
Aquí tiene su carné.
¿Es esta su maleta?

Describing People

Su pelo es rubio.
Su actitud es positiva.
Sus ojos son verdes.
Su familia es de México.

Workplace

He leído su informe.
Su oficina está al final.
¿Recibió su pago?
Respetamos su decisión.

Daily Life

El perro busca su hueso.
Ella olvidó su paraguas.
Ellos aman su ciudad.
Cada uno tiene su opinión.

Travel

¿Dónde está su pasaporte?
Su vuelo está retrasado.
Tome su equipaje.
¿Cuál es su destino?

Conversation Starters

"¿Cuál es su opinión sobre el clima de hoy?"

"¿Me podría decir cuál es su plato favorito?"

"¿Cómo es su rutina diaria normalmente?"

"¿Dónde pasó su familia las últimas vacaciones?"

"¿Cuál es su libro o película preferida?"

Journal Prompts

Describe a tu mejor amigo y menciona su trabajo, su familia y su pasatiempo favorito.

Escribe sobre una persona famosa y explica por qué su legado es importante hoy en día.

Imagina que conoces a alguien importante. Escribe tres preguntas formales usando 'su'.

Describe tu ciudad ideal y menciona cómo es su gente y su clima.

Escribe sobre un animal y describe su hábitat y su comportamiento.

Frequently Asked Questions

10 questions

No, 'su' is the same for masculine and feminine owners and objects. For example, 'su padre' (his/her father) and 'su madre' (his/her mother) both use 'su'. The only change is for number: 'su' (singular object) and 'sus' (plural object).

You must rely on the context of the conversation. If you were just talking about Maria, 'su' means 'her'. If it's still unclear, you can say 'el libro de ella' (her book) or 'el libro de él' (his book) to be specific.

Use 'sus' whenever the thing being owned is plural. It doesn't matter if there is one owner or many. For example: 'Juan tiene sus llaves' (Juan has his keys) and 'Ellos tienen sus llaves' (They have their keys).

When it means 'your', it is formal (used with 'usted'). When it means 'his', 'her', or 'their', it is neutral and can be used in any context. For informal 'your', use 'tu'.

Yes, 'su' is used for animals and inanimate objects. For example, 'La empresa y su éxito' (The company and its success) or 'El perro y su hueso' (The dog and its bone).

No, in Spanish, you cannot use a definite article (el, la, los, las) with a possessive adjective like 'su'. You must say 'su libro' or 'el libro suyo'.

Yes, 'su' is the possessive form for 'ellos' and 'ellas'. For example, 'Ellos venden su casa' (They are selling their house).

'Su' is a short-form possessive used before a noun. 'Suyo' is a long-form possessive used after a noun or as a pronoun. Example: 'Su casa' vs 'La casa es suya'.

Usually no. If you are the one doing the action to your own body, use the definite article. 'Me lavo la cara' (I wash my face). You only use 'su' if you are talking about someone else's body part in a non-reflexive way.

Yes, in Latin America, 'su' is the possessive for 'ustedes' (you all). In Spain, 'vuestro' is used for informal 'you all', but 'su' is still used for the formal 'ustedes'.