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"Tu" is a form of "tu", an adjective which is often translated as "your". "Yo, bien" is a phrase which is often translated as "I'm fine". Learn more about the difference between "yo, bien" and "tu" below.
yo, bien(
yoh
 
byehn
)
A phrase is a group of words commonly used together (e.g., once upon a time).
phrase
a. I'm fine
¿Cómo estás? - Yo, bien, pero mi hermana está enferma.How are you? - I'm fine, but my sister is sick.
b. I'm OK
¿Cómo te sientes? - Yo, bien. ¿Por qué preguntas?How are you feeling? - I'm OK. Why do you ask?
c. I'm all right
¿Cómo estás? - Yo, bien. ¿Y tú?How are you? - I'm all right. And you?
d. I'm good
Yo, bien, pero creo que Manuel está triste.I'm good, but I think Manuel is feeling sad.
e. I'm well
¿Todo bien? - Yo, bien. Gracias por preguntar.Is everything okay? - I'm well. Thank you for asking.
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tu(
too
)
An adjective is a word that describes a noun (e.g., the big dog).
adjective
1.
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)
(possessive)
a. your
Mi casa es tu casa.My house is your house.
Ahora es tu turno.Now it's your turn.
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