How to Say "they think" in Spanish
The Spanish word for “they think” is “creen” — A1 level. This is a very common word in everyday Spanish.

Examples
Ellos creen que es una buena idea.
They think that it's a good idea.
¿Por qué creen que el proyecto fracasó?
Why do they think the project failed?
Los expertos creen que la economía mejorará pronto.
The experts think the economy will improve soon.
Expressing Opinions with 'que'
To share an opinion, the structure is simple: 'creen que' + the idea. For example, 'Creen que el libro es interesante' (They think that the book is interesting).
A tricky verb change for negative opinions
Mistake: “No creen que es posible.”
Correction: No creen que sea posible. (They don't think it's possible.) When you say you *don't* believe something, Spanish often requires a special verb form (the subjunctive) for the thing you doubt.
Related Translations
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