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"This" is a pronoun which is often translated as "este", and "those" is an adjective which is often translated as "esos". Learn more about the difference between "this" and "those" below.
this(
thihs
)A pronoun is a word that stands in for a noun (e.g., she).
d. así
Is this enough for you or would you like a bigger piece?¿Así te llega o quieres un trozo más grande?
An adjective is a word that describes a noun (e.g., the big dog).
a. este (masculine)
This winter has been the coldest one in twenty years.Este invierno ha sido el más frío en veinte años.
those(
thoz
)An adjective is a word that describes a noun (e.g., the big dog).
b. esas (before feminine noun)
Those pens are mine, but you can borrow them.Esas plumas son mías, pero te las presto.
c. aquellos (before masculine noun)
Those buildings look so small from this height.Aquellos edificios se ven tan pequeños desde esta altura.
d. aquellas (before feminine noun)
I don't want these strawberries. I want those over there by the exit.No quiero estas fresas. Quiero aquellas que están allí por la salida.
A pronoun is a word that stands in for a noun (e.g., she).
a. esos (in place of masculine noun)
I don't want the red shoes; I want those.No quiero los zapatos rojos; quiero esos.
b. esas (in place of feminine noun)
Those aren't the boxes I asked you for.Esas no son las cajas que te pedí.
c. aquellos (in place of masculine noun)
Those are just as good as these.Aquellos son tan buenos como estos.
d. aquellas (in place of feminine noun)
Those always have more seeds than these apples.Aquellas siempre tienen más semillas que estas manzanas.