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"Lo sé" is a phrase which is often translated as "I know", and "sé" is a phrase which is also often translated as "I know". Learn more about the difference between "lo sé" and "sé" below.
lo sé(
loh
seh
)A phrase is a group of words commonly used together (e.g., once upon a time).
sé(
seh
)A phrase is a group of words commonly used together (e.g., once upon a time).
a. I know
Sé que eres tímido y que no te gusta hablar en público.I know that you're shy and you don't like speaking in public.
b. I know how
Sé tocar el violín, pero no soy un músico profesional.I know how to play the violin, but I'm not a professional musician.
3. (informal) (imperative; second person singular; have existence)
A word or phrase used to refer to the second person informal “tú” by their conjugation or implied context (e.g., How are you?).