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"Her" is an adjective which is often translated as "su", and "his friend" is a phrase which is often translated as "su amigo". Learn more about the difference between "her" and "his friend" below.
her(
huhr
)
An adjective is a word that describes a noun (e.g., the big dog).
adjective
a. su
Her children are very bright.Sus hijos son muy inteligentes.
I cannot stand her attitude any longer.Ya no puedo soportar más su actitud.
A pronoun is a word that stands in for a noun (e.g., she).
pronoun
a. ella (emphatic use)
Please, explain it to her.Por favor, explícaselo a ella.
b. la (direct object)
I love her, but she loves someone else.La amo, pero ella ama a otro.
c. le (indirect object)
Give her all the money she needs!¡Dale todo el dinero que necesite!
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his friend(
hihz
 
frehnd
)
A phrase is a group of words commonly used together (e.g., once upon a time).
phrase
a. su amigo (masculine)
Chad is coming over tonight, right? - Yes, and so is is friend.Chad viene esta noche, ¿verdad? - Sí, y también su amigo.
b. su amiga (femenine)
James is here! Wow, who is his friend? - I think it's his girlfriend.¡James ha llegado! Vaya, ¿quién es su amiga? - Creo que es su novia.
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