ciertos
/syéhr-tohs/
some
This image illustrates 'ciertos' meaning 'some' or an unspecified quantity chosen from a larger group.
ciertos(Adjective)
some
?unspecified quantity/group
,certain
?unspecified group
various
?a range of
📝 In Action
Ciertos libros están en oferta esta semana.
A2Some books are on sale this week.
Hay ciertos animales que solo viven en esta selva.
B1There are certain animals that only live in this jungle.
Solo ciertos miembros tienen acceso a la sala VIP.
B1Only certain members have access to the VIP room.
💡 Grammar Points
Position Matters
When 'ciertos' comes BEFORE the masculine plural noun (e.g., 'ciertos amigos'), it means 'some' or 'a few unspecified ones'.
❌ Common Pitfalls
Confusing Number
Mistake: "Using the singular form when referring to multiple items: 'cierto problemas'."
Correction: Use the plural form for plural nouns: 'ciertos problemas' (some problems).
⭐ Usage Tips
Polite Vagueness
Use 'ciertos' when you don't want to specify exactly which items or people you are talking about, often sounding slightly more formal than 'algunos'.
This image illustrates 'ciertos' meaning 'true' or representing a definite, undeniable fact.
📝 In Action
Los datos que presentó eran ciertos.
B2The data he presented were true/definite.
Si los rumores son ciertos, tendremos vacaciones extra.
C1If the rumors are true, we will have extra vacation.
💡 Grammar Points
Position Matters (II)
When 'ciertos' comes AFTER the masculine plural noun (e.g., 'hechos ciertos'), it means 'true' or 'definite'. This use is less common than the 'some' meaning.
⭐ Usage Tips
Use with 'Ser'
This meaning is often used with the verb 'ser' (to be) to make a definitive statement: 'Los hechos son ciertos'.
✏️ Quick Practice
💡 Quick Quiz: ciertos
Question 1 of 2
Which sentence uses 'ciertos' to mean 'some' (unspecified)?
📚 More Resources
Frequently Asked Questions
What is the difference between 'ciertos' and 'algunos'?
Both mean 'some,' but 'ciertos' often sounds slightly more formal or implies a specific, though unnamed, group or category. 'Algunos' is a more general and common way to say 'some'.
Does 'ciertos' change meaning depending on where it is placed?
Yes, absolutely! When it is placed BEFORE the noun ('ciertos problemas'), it means 'some' or 'unspecified.' When it is placed AFTER the noun or used with 'ser' ('los problemas son ciertos'), it means 'true' or 'definite'.