Because sometimes you can´t translate word by word from one language to another, and get the same meaning. "Not only are there Spanish words that convey shades of meaning that don't exist in English, there are also Spanish words that can't be translated literally into their equivalent English meaning. ... Languages don't work like that! "(Rocket Languages) Pase,tome asiento: Pass, drink a chair? (Come in,take a seat)

-By, puede ser traducido como -por o -a, Ejemplo: 1. "Al lado". Ejemplo: He is by your side. Él está a tu lado. .Para indicar quién realiza la acción en una oración pasiva Ejemplo: -This house was built by my uncle. Esta casa fue construida por mi tío. Nota: Aquí traducimos "by" por "por". Para dar instrucciones: -You can do it by pressing the key "A" Puedes hacerlo presionando la tecla "A".