Algo
something; anything
Alguien
Someone; somebody; anyone
Alguno/a(s), alg�n
Some; any
O...o
Either...or
Siempre
Always
Tambi�n
Also; too
Nada
Nothing; not anything
Nadie
No one; nobody; not anyone
Ninguno/a, ning�n
No; none; not any
ni...ni
neither...nor
nunca, jam�s
never, not ever
tampoco
neither, not either