Algún vs Algúno

Question

Hello,There are two lessons on how to say some in Spanish. This one and the one in the Pronouns chapter. My question is: what is the difference?The only real difference that I was able to find is that algún, algúna, algúnos, algúnas can be used with a noun in the same sentence or clause, but alguno, alguna, algunos and algunas can NOT be used with a noun in the same sentence or clause.Is this it?Is there another difference?

Answer

That's it David.  In the lesson on pronouns, the words replace nouns.  It's similar to English (e.g. alguno = someone).   Just look at whether the word stands alone or not.  If it's with a noun, like you said, then the above lesson applies, otherwise the word is a pronoun.