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Both "creí" and "creía" are forms of "creer", which is often translated as "to believe". Learn more about "creer" below.
creer()
An intransitive verb is one that does not require a direct object (e.g., The man sneezed.).
A transitive verb is a verb that requires a direct object (e.g., I bought a book.).
2. (to suppose)
3. (to accept)
creerse
A reflexive verb is a verb that indicates that the subject performs an action on itself (e.g., Miguel se lava.).
