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"No lo sé" is a phrase which is often translated as "I don't know", and "no sé" is a phrase which is also often translated as "I don't know". Learn more about the difference between "no lo sé" and "no sé" below.
no lo sé()
A phrase is a group of words commonly used together (e.g., once upon a time).
1. (general)
a. I don't know
Pierdes el tiempo preguntándome a mí. Ya te dije que no lo sé.You are wasting your time asking me. I already told you I don't know.
no sé()
A phrase is a group of words commonly used together (e.g., once upon a time).
1. (general)