Ambos vs Los dos
Use 'ambos' for a formal or written tone. Use 'los dos' for everyday conversation. They almost always mean the same thing: 'both'.
ambos
Both (often used in a slightly more formal, written, or unified context)
AHM-bohslos dos
Both / The two (the most common and neutral way to say 'both' in conversation)
lohs DOHSQuick Rule
Use 'ambos' for a formal or written tone. Use 'los dos' for everyday conversation. They almost always mean the same thing: 'both'.
Think: 'Ambos' is for academic writing. 'Los dos' is for talking to your 'dos' amigos (two friends).
- You can NEVER say 'los ambos'. It's either 'ambos' or 'los dos'.
Comparison Table
| Context | ambos | los dos | Why? |
|---|---|---|---|
| Formality | Ambos informes están completos. | Los dos informes están completos. | 'Ambos' sounds slightly more formal/professional. 'Los dos' is more common in daily speech. |
| Referring to people | Ambos son mis amigos. | Los dos son mis amigos. | Completely interchangeable in conversation. 'Los dos' is heard more frequently. |
| Gender agreement | Ambas hermanas son doctoras. | Las dos hermanas son doctoras. | Both forms must agree with the gender of the noun they describe. |
When to Use "ambos / los dos"
ambos
Both (often used in a slightly more formal, written, or unified context)
AHM-bohs
Formal or written language
Ambos candidatos presentaron sus propuestas.
Both candidates presented their proposals.
Referring to a pair as a single unit
Ambos padres deben firmar el documento.
Both parents must sign the document.
Can stand alone (without a noun)
¿Cuál prefieres? Me gustan ambos.
Which do you prefer? I like both.
los dos
Both / The two (the most common and neutral way to say 'both' in conversation)
lohs DOHS
Everyday conversation
Los dos restaurantes son buenos.
Both restaurants are good.
Referring to two specific items/people
Vi a tus hermanos. Los dos te mandan saludos.
I saw your brothers. Both of them say hi.
Can stand alone (without a noun)
¿Quieres el rojo o el azul? Quiero los dos.
Do you want the red one or the blue one? I want both.
Contrast Examples
With "ambos":
Ambas estrategias tienen sus méritos.
Both strategies have their merits.
With "los dos":
Las dos estrategias tienen sus méritos.
The two strategies have their merits.
The Difference: 'Ambos' sounds more formal and is common in business or academic writing. 'Las dos' is perfectly correct but more neutral and conversational.
With "ambos":
Ambas películas fueron excelentes.
Both films were excellent.
With "los dos":
Las dos películas fueron excelentes.
Both movies were excellent.
The Difference: A native speaker would almost always say 'las dos' in this casual context. Using 'ambas' might sound a little stiff or overly formal.
Common Mistakes
Los ambos libros son interesantes.
Ambos libros son interesantes. / Los dos libros son interesantes.
You can't use 'los' with 'ambos'. 'Ambos' already includes the idea of 'the'. Think of it like saying 'the both books' in English.
Yo quiero dos.
Yo quiero los dos.
When you mean 'both of them' (referring to two specific, known items), you need 'los dos'. 'Yo quiero dos' just means 'I want two (of anything)'.
Quick Practice
Quick Quiz: Ambos vs Los dos
Question 1 of 2
In a formal business email, which is a slightly better choice? '___ reportes están listos.'
Related Grammar
Want to understand the grammar behind this pair? Explore these lessons for a deep dive:
Key Words
Tags
Build the instinct, not just the rule
Rules help you get it right; context makes it automatic. Read 200+ illustrated and narrated Spanish stories to see confusing pairs chosen correctly — over and over — until you stop thinking about it.
Frequently Asked Questions
Can I just always use 'los dos' and forget 'ambos'?
For speaking, yes, you'll be understood 99% of the time. However, you'll see 'ambos' frequently in books, news, and formal documents, so it's important to recognize it. Using it correctly can also make your writing sound more sophisticated.
Do 'ambos' and 'los dos' change for gender?
Yes, they both do. 'Ambos' becomes 'ambas' for feminine nouns (ambas chicas). 'Los dos' becomes 'las dos' for feminine nouns (las dos chicas).