once eleven
doce twelve
trece thirteen
catorce fourteen
quince fifteen
dieciséis sixteen
diecisiete seventeen
dieciocho eighteen
diecinueve nineteen
veinte twenty
veintiuno twenty-one
veintidós twenty-two
veintitrés twenty-three
veinticuatro twenty-four
veinticinco twenty-five
veintiséis twenty-six
veintisiete twenty-seven
veintiocho twenty-eight
veintinueve twenty-nine
treinta thirty
treinta y uno thirty-one
