Possessive Adjectives (mi, tu, su...)

Possessive Adjectives in Spanish 🇪🇸

Welcome to our lesson on possessive adjectives! These are the words we use to show that something belongs to someone, just like 'my', 'your', 'his', 'her', 'its', 'our', and 'their' in English.

➡️ In Spanish, these words are called 'adjetivos posesivos'. They are essential for talking about your family, your belongings, and your relationships.

Let's look at the main possessive adjectives. They are placed before the noun they describe.

👤 The Forms

Here is a list of the possessive adjectives and the pronouns they correspond to:

🔹 mi / mis → my (from 'yo' - I)
🔹 tu / tus → your (from 'tú' - you, informal/singular)
🔹 su / sus → his, her, its, your (from 'él/ella/usted' - he/she/you formal)
🔹 nuestro / nuestra / nuestros / nuestras → our (from 'nosotros/nosotras' - we)
🔹 vuestro / vuestra / vuestros / vuestras → your (from 'vosotros/vosotras' - you, informal/plural, used mainly in Spain)
🔹 su / sus → their, your (from 'ellos/ellas/ustedes' - they/you all)

You might notice that 'su/sus' appears twice. We will discuss that in a moment!

🔑 Rule 1: Agreement in Number (Singular vs. Plural)

This is the most important rule. The possessive adjective must agree with the noun it describes (the thing being possessed), not the owner.

If the noun is singular, you use the singular form (mi, tu, su).
If the noun is plural, you add an '-s' to get the plural form (mis, tus, sus).

Let's see some examples:
✅ mi libro (my book) → 'libro' is singular.
✅ mis libros (my books) → 'libros' is plural.

✅ tu amigo (your friend) → 'amigo' is singular.
✅ tus amigos (your friends) → 'amigos' is plural.

✅ su coche (his/her/their car) → 'coche' is singular.
✅ sus coches (his/her/their cars) → 'coches' is plural.

🔑 Rule 2: Agreement in Gender (Masculine vs. Femenine)

This rule applies only to 'nuestro' (our) and 'vuestro' (your, plural). These two adjectives have four forms because they must agree in both number AND gender with the noun they describe.

Here are the four forms for 'our':
🔸 nuestro (masculine singular)
🔸 nuestra (feminine singular)
🔸 nuestros (masculine plural)
🔸 nuestras (feminine plural)

Examples with a masculine noun like 'libro' (book):
➡️ nuestro libro (our book)
➡️ nuestros libros (our books)

Examples with a feminine noun like 'casa' (house):
➡️ nuestra casa (our house)
➡️ nuestras casas (our houses)

The same logic applies to 'vuestro', which is common in Spain.
➡️ vuestro perro (your dog)
➡️ vuestra gata (your cat)
➡️ vuestros perros (your dogs)
➡️ vuestras gatas (your cats)

⚠️ The Challenge of 'su' and 'sus'

As you saw, 'su' and 'sus' can be confusing because they have many meanings:

• his
• her
• its
• your (formal, for 'usted')
• their
• your (plural, for 'ustedes')

So, how do you know what "su casa" means?
Context is your best friend!

Imagine you are talking about your friend, Maria. If you say, "Es su casa," it is clear you mean "It's her house."
If you are talking about your parents, "Es su casa" means "It's their house."

For extra clarity, Spanish speakers sometimes use a different structure with 'de' (of):
🔹 el libro de él (the book of him → his book)
🔹 la casa de ella (the house of her → her house)
🔹 los perros de ellos (the dogs of them → their dogs)
🔹 la mesa de usted (the table of you → your table)
This helps to remove any confusion.

📝 Summary

Let's review the key points:

1. Possessive adjectives show ownership and come before the noun.
2. They must agree in number (singular/plural) with the noun they describe. (e.g., mi coche, mis coches)
3. 'Nuestro' and 'vuestro' must also agree in gender (masculine/feminine) with the noun. (e.g., nuestro amigo, nuestra amiga)
4. 'Su' and 'sus' can have multiple meanings. Use the context of the conversation to understand who the owner is.

Mastering these adjectives will make your Spanish sound much more natural. ¡Buena suerte! (Good luck!)