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"Don't know" is a form of "know", a transitive verb which is often translated as "saber". "What do you think?" is a phrase which is often translated as "qué crees". Learn more about the difference between "don't know" and "What do you think?" below.
know(
no
)A transitive verb is a verb that requires a direct object (e.g., I bought a book.).
a. saber
Do you know when the next bus is leaving?¿Sabes a qué hora sale el próximo autobús?
He knows French, Spanish, and German.Sabe francés, español y alemán.
a. conocer
I know her from school, but we're not really friends.La conozco de la escuela, pero realmente no somos amigos.
a. saber
I don't know if you should walk home so late.No sé si deberías caminar sola a tu casa a esta hora.
a. saberse
Do you know the alphabet yet?¿Ya te sabes el abecedario?
He knows a lot about the American Civil War.Se sabe mucho de la guerra civil estadounidense.
An intransitive verb is one that does not require a direct object (e.g., The man sneezed.).
What do you think?(
wuht
du
yu
thihngk
)A phrase is a group of words commonly used together (e.g., once upon a time).
a. qué crees (informal) (singular)
A word or phrase used to refer to the second person informal “tú” by their conjugation or implied context (e.g., How are you?).
A word or phrase that is singular (e.g., el gato).
What do you think the managers were discussing in their secret meeting?¿Qué crees que discutieron los gerentes en su conferencia secreta?
b. qué te parece (informal) (singular)
A word or phrase used to refer to the second person informal “tú” by their conjugation or implied context (e.g., How are you?).
A word or phrase that is singular (e.g., el gato).
Oh honey, what do you think of this new refrigerator?Ay, querido, ¿qué te parece este nuevo refrigerador?
c. qué cree (formal) (singular)
A word or phrase used to refer to the second person formal “usted” by their conjugation or implied context (e.g., usted).
A word or phrase that is singular (e.g., el gato).
What do you think I saw in the market, Mrs. Hernandez? Your favorite candy!¿Qué cree que vi en el mercado, Sra. Hernández? ¡Sus dulces preferidos!
d. qué le parece (formal) (singular)
A word or phrase used to refer to the second person formal “usted” by their conjugation or implied context (e.g., usted).
A word or phrase that is singular (e.g., el gato).
I like how the dining room turned out. What do you think, Granny?A mí me gusta cómo quedó el comedor. ¿Qué le parece, abuela?
b. qué les parece (plural)
A word or phrase that is plural (e.g., los libros).
What do you think, guys? Does this restaurant look good?¿Qué les parece, chavos? ¿Se ve bien este restaurante?