you need to know

you need to know(
yu
 
nid
 
tu
 
no
)
A phrase is a group of words commonly used together (e.g., once upon a time).
phrase
a. tienes que saber
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)
A word or phrase that is singular (e.g., el gato).
(singular)
Are these math problems on the exam? - Yes, I think you have to know how to solve them.¿Estos problemas de matemáticas entran para el examen? - Sí, creo que tienes que saber resolverlos.
b. tiene que saber
A word or phrase used to refer to the second person formal “usted” by their conjugation or implied context (e.g., usted).
(formal)
A word or phrase that is singular (e.g., el gato).
(singular)
You have to know how to manage difficult situations when you're the director of the company.Tiene que saber cómo manejar las situaciones difíciles cuando es director de la compañía.
a. tienen que saber
A word or phrase that is plural (e.g., los libros).
(plural)
You have to know how to write an essay. If not, you won't pass this class.Tienen que saber cómo escribir un ensayo. Si no, no van a aprobar esta clase.
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