"The path is short."
How do you pronunce 짧습니다?
The ㅂ is silent and the ㄹ makes an l sound at the end of a syllable. So it is actually jjal-seum-ni-da.
Its important to not rely on romanization for very long as it can really mess you up
I believe the first compound is pronounced like 짤 and the ㅂ gets added to the placeholder ㅇ if followed by a vowel. Can't remember how the pronunciation applies to double-consonants when followed by other consonants like ㅎ though.
jjalseubnida. When pronouncing words with double-consonants below the block, only one of them is to be pronounced. Usually the first. This is the best way I can explain this.
You're right that its only one that's pronounced, but I don't think it always always the first though that seems to be common and I could be way off mark here
You're right. The second consonant is the one pronounced only with:
ㄹ+ㄱ ㄹ+ㅍ ㄹ+ㅁ