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"Uno" is a form of "uno", an adjective which is often translated as "one". "Ninguno" is an adjective which is often translated as "no". Learn more about the difference between "uno" and "ninguno" below.
uno(
oo
-
noh
)An adjective is a word that describes a noun (e.g., the big dog).
a. one
Me queda solo un dulce.I've only got one candy left.
Necesitamos una moneda más para completar el conjunto.We need one more coin to complete the set.
A masculine noun is used with masculine articles and adjectives (e.g., el hombre guapo, el sol amarillo).
A pronoun is a word that stands in for a noun (e.g., she).
ninguno(
neeng
-
goo
-
noh
)An adjective is a word that describes a noun (e.g., the big dog).
a. no (in affirmative clauses)
Ningún maestro apoyaría esos cambios.No teacher would support those changes.
b. any (in negative clauses)
No estaba al corriente de ninguna noticia mala sobre el gobernador.I was not aware of any negative news about the governor.
2. (not one)
a. no (in affirmative clauses)
Ninguna tarea fue asignada por los maestros esta semana.No homework was assigned by the teachers this week.
b. any (in negative clauses)
El juez no puede tomar ninguna decisión hasta que vea la evidencia.The judge cannot make any decision until he sees the evidence.
A pronoun is a word that stands in for a noun (e.g., she).
3. (no person)
a. none (in affirmative clauses)
Ninguno de ellos me llamó para felicitarme.None of them called me to congratulate me.
b. no one (in affirmative clauses)
Ninguno parecía tener idea de lo que hacía.No one seemed to know what they were doing.
c. nobody (in affirmative clauses)
Por lo que yo veo, ninguno vale para el puesto.From what I can see, nobody is right for the job.
4. (no thing)
a. none (in affirmative clauses)
Ninguna de ellas es apropiada para nosotros.None of them is right for us.
b. any (in negative clauses)
Le dije que limpiara los cuadros, pero no limpió ninguno.I told her to clean the paintings, but she didn't clean any.
a. neither (in affirmative clauses)
Ninguno de los dos va a cambiar.Neither of the two is going to change.
b. either (in negative clauses)
El sitio web no aceptó ninguna de las contraseñas que probé.The site didn't accept either of the two passwords I tried.