There
is really a great num of letters in Hangle. And the
below is just the example of letters with 「 Top
dual consonants, Mid vowel 'ㅏ[a]'
& Bottom dual consonants
with 'ㄴ[n]
& ~」.
......
You
might see letters which are composed of similar
phonems like clons. Someday those letters
will be very useful in Hangle.