There are some verbs in Korean that exists as both transitive and intransitive (like in English and other languages). Transitive means the verb needs an object while intransitive does not need it or accept it. I decided that I would unveil which one was which. Once you find out it will definitely improve your writing skills.
There are some verbs that end in 나다/내다 like 끝나다 and 끝내다. When I first encountered them way long ago, my teacher didn’t make a distinction over their use. It started niggling me some days ago so I started looking information on it. I want to point out that not every -나다/내다 verb refers to its transitiveness or not, but if you encounter two verbs that means the same but just ends slightly different there’s a high probability it’s just denoting its transitiveness.
If the verb ends in -나다: it is intransitive.
If the verb ends in -내다: it is transitive.
There also other endings as well like for example there’s the verb 서다 (to stop, stand) and 타다 (to burn). Both are intransitive verbs but they have transitive counterparts.
서다 —> 세우다
I can assume that probably any verb ending like that will be transitive and I think 에/애 are a sign that you can use objects. At least, it is what it looks like.
That’s it for now! I will keep updating this post as I find more information about it.
Until, next time!~