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"As long as" is a phrase which is often translated as "siempre y cuando", and "since" is a preposition which is often translated as "desde". Learn more about the difference between "as long as" and "since" below.
as long as(
ahz
lang
ahz
)A phrase is a group of words commonly used together (e.g., once upon a time).
a. siempre y cuando
As long as you finish your homework, you can go out to play.Siempre y cuando termines tu tarea, puedes salir a jugar.
b. siempre que
I don't care where we live as long as we're together.No me importa dónde vivimos, siempre que estemos juntos.
c. con tal de que
She accepts everyone's opinion, as long as they agree with her.Acepta la opinión de todos, con tal de que estén de acuerdo con ella.
2. (while)
a. mientras
I'm not leaving the house as long as it's raining.No salgo de casa mientras esté lloviendo.
3. (since)
a. puesto que
As long as you are going to the store, can you bring me some milk?Puesto que vas a la tienda, ¿me puedes traer leche?
a. tan largo como (length)
I saw a crocodile as long as a car in Egypt.Vi un cocodrilo tan largo como un coche en Egipto.
since(
sihns
)A preposition is a word that indicates the relationship between a noun and another word (e.g., He ran through the door.).
a. desde
I have been working for this company since 2010.Llevo trabajando en esta empresa desde 2010.
A conjunction is a word that connects words, phrases, clauses, or sentences (e.g., The cat and the dog slept.).
2. (reason)
a. ya que
Since I'm the only one watching TV, pass me the remote.Ya que soy la única que está viendo tele, pásame el control remoto.
b. como
Since you don't like pizza, can I have your portion?Como no te gusta la pizza, ¿puedo tomarme tu porción?
c. puesto que (formal)
We didn't visit her since it was very late.No la visitamos puesto que era muy tarde.
An adverb is a word that describes a verb, an adjective, or other adverbs (e.g., to run quickly, very tired).
4. (after that)
a. desde entonces
I met her for dinner, but I haven't seen her since.Cené con ella, pero no la he visto desde entonces.
5. (long ago)
