algun / alguno .....ningun/ninguno
both of these words are muscular, so whats their differences???

Question

Answer

Muscular??? What do you mean?

`Algún' and `ningún' are adjectives:

¿Hay algún libro aquí?
Aquí no hay ningún libro.

`Alguno' and `ninguno' are pronouns:

¿Hay alguno aquí?
Aquí no hay ninguno.

Answer

"Alguno" and "ninguno" may be pronouns or adjectives.
As adjectives, both must to change to the shorten forms "algún" o "ningún" before a MASCULINE SINGULAR noun.

Answer

sorry I made a mistake in my question , I mean both are masculine...

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