•Alguno/a(s) and Ninguno/a change to match the noun it is describing in gender and number.
Some pencils- Algunos lápices , No one girl- Ninguna chica
•Algún and alguno are both equivalent forms of "some/any."
•When the masc/singular noun is present, use the short version algún.
I need any book. Necesito algún libro.
○Only use alguno when the masc/singular noun is implied but not in the expression.
¿Tienes dinero? Necesito alguno ("some"-about dinero)
•Same rules apply for "none/not any" - ningún versus ninguno.
○If one of the negative words above appears AFTER the conjugated verb in the sentence, you MUST put the word "NO" before the verb.
○A double negative is negative in Spanish when "no" comes before the verb.
Indefinite words that come after "No + verb" MUST BE negatives
I don't want any homework. NO, no quiero ninguna tarea.
○When someone/anyone or no one is the indefinite word, you must put the preposition "a" before "alguien/nadie"
Do you know anyone from Spain? ¿Conoces a alguien de España?
