suvsde él/de ella
/SOO/
/deh EHL / deh EH-yah/
💡 Quick Rule
Use 'su' when it's clear who you mean. Use 'de él/ella' to remove all doubt.
Think: 'Su' is short and simple (but vague). 'De él/ella' is longer and specific.
- In spoken Spanish, people often use 'su' and rely entirely on context to avoid confusion.
- You always use 'su' before the noun ('su casa'), and 'de él/ella' after ('la casa de él').
📊 Comparison Table
| Context | su | de él/de ella | Why? |
|---|---|---|---|
| Ambiguous Statement | Hablé con Ana y su hermano. | Hablé con Ana y el hermano de él. | 'su' is ambiguous: Is it Ana's brother or someone else's? 'de él' clarifies it belongs to a male person we were just talking about. |
| Answering a Question | (Not used this way) | ¿De quién es el perro? Es de ella. | To answer 'Whose...?', you almost always use the 'de + person' structure. 'Es su perro' would sound unnatural as a direct answer. |
| Plural Owners | Son sus maletas. | Son las maletas de ellos. | 'sus maletas' could mean his, her, or their suitcases. 'de ellos' makes it clear the suitcases belong to a group of people. |
| Formal vs. Informal | Señor, ¿es su coche? | ¿Es el coche de usted? | 'su' is the standard for formal 'you'. 'de usted' is also correct and can be used for clarity or emphasis. |
✅ When to Use "su" / de él/de ella
su
The all-purpose possessive adjective for 'his', 'her', 'its', 'your' (formal), and 'their'.
/SOO/
Simple possession (when context is clear)
Juan busca su cartera.
Juan is looking for his wallet.
Describing relationships
María juega con su hermano.
María is playing with her brother.
For formal 'you' (usted/ustedes)
Señora, ¿es esta su bolsa?
Ma'am, is this your bag?
For plural owners ('their')
Los estudiantes abren sus libros.
The students open their books.
de él/de ella
A phrase used after a noun to clarify possession, literally 'of him', 'of her', 'of them', etc.
/deh EHL / deh EH-yah/
Clarifying ambiguity
Es el coche de él, no de ella.
It's his car, not hers.
Answering 'Whose...?' (¿De quién...?)
¿De quién es esta chaqueta? Es de él.
Whose jacket is this? It's his.
Adding emphasis
La idea fue de ella, no mía.
The idea was hers, not mine.
Clarifying plural owners
La casa de ellos es muy grande.
Their house is very big.
🔄 Contrast Examples
With "su":
David está con su perro.
David is with his/her/their dog.
With "de él/de ella":
David está con el perro de ella.
David is with her dog.
The Difference: 'su perro' is ambiguous. Is it David's dog? Or maybe Ana's dog, who you were just talking about? 'el perro de ella' makes it 100% clear the dog belongs to a female person.
With "su":
Leí su libro.
I read his/her/their book.
With "de él/de ella":
Leí el libro de ellos.
I read their book.
The Difference: 'su libro' could mean you read the book by just the man, or just the woman. 'el libro de ellos' clarifies that you read the book they wrote together.
🎨 Visual Comparison
'Su' can be vague. 'De él' or 'de ella' points directly to the owner.
⚠️ Common Mistakes
Vi a Pablo con la hermana de su.
Vi a Pablo con su hermana.
'Su' is a possessive adjective that must come *before* the noun. The 'de + pronoun' structure is used *after* the noun (e.g., 'la hermana de él').
Context: Talking about Maria. 'Su coche es rojo.' (Thinking it clearly means 'her').
Context: Talking about Maria. 'El coche de ella es rojo.'
While 'su' can be correct if the context is strong, using 'de ella' removes any possible confusion, especially in writing or at the beginning of a conversation.
📚 Related Grammar
Want to understand the grammar behind this pair? Explore these lessons for a deep dive:
🏷️ Key Words
✏️ Quick Practice
Quick Quiz: su vs de él/de ella
Question 1 of 2
You see Maria and Juan. You want to say 'I like his car.' How do you say it clearly?
🏷️ Tags
Frequently Asked Questions
So should I just stop using 'su' and always use 'de él' or 'de ella'?
No, not at all! 'Su' is extremely common. The key is to use it when the context makes the owner obvious. For example, if you say 'Ana abrió su bolso' (Ana opened her purse), it's clear it's her own purse. You only need 'de él/ella' when there's a chance of confusion.
How does this work for 'your' (formal)?
It's the same principle. 'Su casa' can mean 'your house' when talking to an 'usted' or 'ustedes'. To be extra clear or polite, you can say 'la casa de usted' or 'la casa de ustedes'.