Structure of Hangul
Consonants must be combined with a vowel. In the Korean language, no consonant can make a sound by itself. There must always be a vowel followed by a consonant. For instance, ‘ㅂ’ alone is nothing, but ‘바’ is ‘ba’. This may explain why the pronunciation of some English loan words differs from the pronunciation of the original English.

What is a batchim (받침)?
Batchim (받침) is the bottom or lower position consonants, or we can say the support in a syllable. It is an important part of Korean pronunciation because it often determines a change in the way words are pronounced.

Example: Basic Batchim
 

k	ㄱ,ㅋ,ㄲ
n	ㄴ
t	ㄷ,ㅌ,ㅅ,ㅆ,ㅈ,ㅊ,ㅎ
L	ㄹ
m	ㅁ
p	ㅂ,ㅍ
ng	ㅇ

Example: Double Batchim
Some batchim are made of two consonants and they are called double batchim.

k	ㄺ
n	ㄵ , ㄶ
t	ㄷ,ㅌ,ㅅ,ㅆ,ㅈ,ㅊ,ㅎ
L	ㄼ , ㅀ
m	ㄻ
p	ㅄ