A person pointing to several colorful books on a table that belong to another group of people standing nearby, illustrating the concept of 'their books'.

sus

/soos/

AdjectiveA1
their?belonging to them,his?belonging to him (for multiple items),her?belonging to her (for multiple items),your?belonging to 'you all' (formal, ustedes),its?belonging to it (for multiple items)

📝 In Action

Ellos aman a sus perros.

A1

They love their dogs.

Sus ojos son azules.

A1

His/Her eyes are blue.

Profesora, ¿podemos usar sus lápices?

A2

Teacher, can we use your pencils?

La gata cuida a sus gatitos.

A2

The cat takes care of its kittens.

Related Words

Antonyms

  • mis (my (plural))
  • nuestros/as (our)

Common Collocations

  • sus amigoshis/her/their/your friends
  • sus cosashis/her/their/your things
  • sus padreshis/her/their/your parents

💡 Grammar Points

It's About the Items, Not the Owner

Use 'sus' when the things being owned are plural (more than one). For just one thing, use 'su'. Compare: 'su libro' (one book) vs. 'sus libros' (many books).

Who's the Owner?

'Sus' can mean 'his', 'her', 'its', 'their', or 'your' (for a group). You figure out who the owner is from the rest of the conversation.

❌ Common Pitfalls

Mixing Up 'Su' and 'Sus'

Mistake: "Él tiene su libros."

Correction: Say 'Él tiene sus libros.' The word must match the number of *items*, not the number of owners. Since 'libros' (books) is plural, you must use 'sus'.

⭐ Usage Tips

How to Be Clear

Because 'sus' can be vague, speakers often add 'de él' (of him), 'de ella' (of her), or 'de ellos' (of them) to avoid confusion. For example: 'Son sus llaves de ella' makes it clear they are her keys.

✏️ Quick Practice

💡 Quick Quiz: sus

Question 1 of 2

Which sentence is correct?

📚 More Resources

Word Family

su(his, her, its, their, your (singular)) - adjective

Frequently Asked Questions

What's the difference between 'sus' and 'su'?

It's all about how many things are being owned. Use 'su' for one thing ('su casa' - their house) and 'sus' for more than one thing ('sus casas' - their houses). It doesn't matter if one person or many people are the owners.

How do I know if 'sus' means 'his', 'her', or 'their'?

You have to use clues from the conversation. If you were just talking about Ana, 'sus llaves' means 'her keys'. If you were talking about the players, 'sus uniformes' means 'their uniforms'. If it's still unclear, speakers add phrases like 'de él' (of him) or 'de ellos' (of them) to be specific.