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"Desde" is a preposition which is often translated as "from", and "desde hace" is a phrase which is often translated as "for". Learn more about the difference between "desde" and "desde hace" below.
desde()
A preposition is a word that indicates the relationship between a noun and another word (e.g., He ran through the door.).
desde hace()
A phrase is a group of words commonly used together (e.g., once upon a time).