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¿Cuándo llegan ellos?

¿Cuándo llegan ellos?
When do they arrive?
From Lesson 12:Question words (quién, cómo)·Spanish (Spain)

Breakdown of ¿Cuándo llegan ellos?

ellos
they (m)
cuándo
when
llegar
to arrive

Questions & Answers about ¿Cuándo llegan ellos?

Why does Cuándo have an accent mark?
All question words in Spanish, like cuándo (when), cómo (how), and quién (who), always have an accent mark. This shows they are asking a question, which helps tell them apart from the exact same words when they are used to connect ideas in normal statements.
Where is the translation for the word "do" in this sentence?
Spanish does not use helper words like "do" or "does" to make questions! The upside-down question mark, the question word cuándo, and the tone of your voice do all the work. You are literally just asking "When arrive they?".
Why is ellos at the very end of the sentence instead of before the verb?
In Spanish questions, it is very common to swap the order of the person doing the action (ellos) and the action itself (llegan). Placing the subject right after the verb sounds much more natural to native speakers.
Do I have to include the word ellos here?
Not at all! You will often hear native speakers just ask ¿Cuándo llegan?. Because the verb ending -an already tells us we are talking about "them" or "you all" (plural), you only add ellos if you need to be extra clear or emphasize exactly who is arriving.

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