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"Since then" is an adverb which is often translated as "desde entonces", and "ever since" is a phrase which is often translated as "desde que". Learn more about the difference between "since then" and "ever since" below.
since then(
sihns
thehn
)An adverb is a word that describes a verb, an adjective, or other adverbs (e.g., to run quickly, very tired).
a. desde entonces
I quit smoking six years ago, and I've been much healthier since then.Dejé de fumar hace seis años y, desde entonces, he estado mucho más sano.
ever since(
eh
-
vuhr
sihns
)A phrase is a group of words commonly used together (e.g., once upon a time).
a. desde entonces
I tried being a vegetarian for a week, and I've been a vegetarian ever since.Intenté ser vegeteriano por una semana, y soy vegeteriano desde entonces.