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"Ayer" is an adverb which is often translated as "yesterday", and "su hijo" is a phrase which is often translated as "his son". Learn more about the difference between "ayer" and "su hijo" below.
ayer(
ah
-
yehr
)
An adverb is a word that describes a verb, an adjective, or other adverbs (e.g., to run quickly, very tired).
adverb
a. yesterday
Me siento mucho mejor hoy que ayer.I feel much better today than yesterday.
A masculine noun is used with masculine articles and adjectives (e.g., el hombre guapo, el sol amarillo).
masculine noun
2.
A word or phrase restricted in usage to literature or established writing (e.g., sex, once upon a time).
(literary)
(recent past)
a. yesteryear
A word or phrase restricted in usage to literature or established writing (e.g., sex, once upon a time).
(literary)
La vida simple del ayer que echamos tanto de menos.The simple life of yesteryear that we miss so much.
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su hijo(
soo
 
ee
-
hoh
)
A phrase is a group of words commonly used together (e.g., once upon a time).
phrase
a. his son (masculine)
Roberto le enseñó a pescar a su hijo.Roberto taught his son how to fish.
b. her son (feminine)
Ivana está preocupada porque su hijo está enfermo.Ivana is worried because her son is sick.
2.
A word or phrase used to refer to the second person formal “usted” by their conjugation or implied context (e.g., usted).
(formal)
(second person singular)
a. your son
Señora Den Bakker, ¿su hijo todavía vive en Ámsterdam?Mrs. Den Bakker, is your son still living in Amsterdam?
a. their son
Conozco a los Climaco. Su hijo es el mejor amigo de mi hija.I know the Climacos. Their son is my daughter's best friend.
4.
A word or phrase used to refer to the second person informal “tú” by their conjugation or implied context (e.g., How are you?).
(informal)
(second person plural)
a. your son
Su hijo se lastimó. Ustedes son padres irresponsables.Your son got hurt. You are irresponsible parents.
5.
A word or phrase used to refer to the second person formal “usted” by their conjugation or implied context (e.g., usted).
(formal)
(second person plural)
a. your son
Señor y señora Aranda, su hijo es un excelente cantante de ópera.Mr. and Mrs. Aranda, your son is a wonderful opera singer.
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