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"Atrás" is an adverb which is often translated as "behind", and "desde hace" is a phrase which is often translated as "for". Learn more about the difference between "atrás" and "desde hace" below.
atrás(
ah
-
trahs
)
An adverb is a word that describes a verb, an adjective, or other adverbs (e.g., to run quickly, very tired).
adverb
a. behind
Hay un cobertizo atrás de la casa.There is a shed behind the house.
b. at the back of
La entrada está atrás del jardín.The entry is at the back of the garden.
a. back
Hay que ir hacia delante y no mirar atrás.You have to move forward and not look back.
b. backward
Tropecé y me fui hacia atrás volando.I tripped and went flying backward.
a. ago
Unos días atrás, estaba en Canadá.A few days ago, I was in Canada.
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desde hace(
dehs
-
deh
 
ah
-
seh
)
A phrase is a group of words commonly used together (e.g., once upon a time).
phrase
a. for
Lo conozco desde hace más de 8 años.I have known him for more than 8 years.
a. in
Esta es la peor tormenta desde hace 150 años.This has been the worst storm in 150 years.
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