When you're talking about nonspecific things.
it's like (a) and (an) in english.
uno is for singular masculine.
una is for singular feminine.
unos is for plural masculine.
unas is for plural feminine.
True. my friend is puerto rican and i asked him
1. La
2. Lo
3. Los
4. Lo
The pronouns lo, la, los, and las are used to take the place of a person, place or thing. You use lo for single masculine nouns, la for single feminine nouns, los for plural masculine nouns, and las for plural feminine nouns.
Hope that helps! :)
