Spanish ll sometimes shows up as l, sometimes as ch, and sometimes as lh (no change). Study these groupings:
a. Spanish ll vs. Portuguese l
Spanish ll
Portuguese l
bello
belo
cabello
cabelo
llevar
levar
gallina
galinha
amarillo
amarelo
ella
ela
allí
ali
villa
vila
caballo
cavalo
callar
calar
fallecer
falecer
b. Spanish ll vs. Portuguese ch
Spanish ll
Portuguese ch
llorar
chorar
llamar
chamar
llegar
chegar
llave
chave
llover
chover
llano
chão
lleno
cheio
c. Spanish ll vs. Portuguese lh
Spanish ll
Portuguese lh
fallar
falhar
milla
milha
millón
milhão
toalla
toalha
billete
bilhete
Notice that Spanish ll appears between vowels in the first group (with the exception of llevar), and at the beginning of the words in the second group.