cero
zero
uno
one
dos
two
tres
three
cuatro
four
cinco
five
seis
six
siete
seven
ocho
eight
nueve
nine
diez
ten
once
eleven
doce
twelve
trece
thirteen
catorce
fourteen
quince
fifteen
diecseis
sixteen
diecsiete
seventeen
diecocho
eighteen
diecnueve
nineteen
veinte
twenty
veintiuno
twenty-one