Quiero que los bomberos apaguen el fuego or <span>Es necesario que los paramédicos vengan pronto
Correct me if I'm wrong.</span>
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.
<span>Saturday would be the 2nd of January
sábado seriá el 2 de Enero</span>