
alguien
/al-gyen/
📝 In Action
¿Hay alguien en casa?
A1Is anyone home?
Alguien llamó por teléfono.
A1Someone called on the phone.
Necesito hablar con alguien que sepa de computadoras.
A2I need to talk to someone who knows about computers.
Si alguien tiene una pregunta, que levante la mano.
B1If anyone has a question, raise your hand.
💡 Grammar Points
The Opposite of 'Nadie'
'Alguien' means 'someone.' Its direct opposite is 'nadie,' which means 'no one' or 'nobody'.
Always Singular, Always the Same
'Alguien' always refers to one person and never changes its spelling for plurals or gender.
Using the 'Personal a'
When 'alguien' is the one receiving an action from a verb, you usually need to put 'a' in front of it. For example, 'Vi a alguien' (I saw someone).
❌ Common Pitfalls
Using in Negative Sentences
Mistake: "No vi a alguien."
Correction: For negative sentences, you must switch to its opposite: 'No vi a nadie' (I didn't see anyone).
Trying to Change its Gender
Mistake: "Busco a alguiena inteligente."
Correction: The word 'alguien' never changes. It works for any person. Say: 'Busco a alguien inteligente'.
⭐ Usage Tips
Perfect for Questions
'Alguien' is great for asking if an unknown person is present or did something. For example, '¿Alguien quiere postre?' (Does anyone want dessert?).
✏️ Quick Practice
💡 Quick Quiz: alguien
Question 1 of 2
Which sentence correctly says 'I didn't hear anyone'?
📚 More Resources
Frequently Asked Questions
What's the difference between 'alguien' and 'alguno'?
'Alguien' always means 'someone' and only refers to people. 'Alguno' means 'some' or 'any' and can refer to a person or a thing from a specific group. For example, '¿Vino alguno de tus amigos?' (Did any of your friends come?).
Can I say 'alguienes' to mean 'some people'?
No, 'alguien' is always singular. If you want to talk about multiple, unspecified people, you would use 'algunos', 'algunas', or 'algunas personas' (some people).