Korean language does not have 'f' 'v' 'th'(in Thanks) 'th'(in Mother) 'l' 'r' 'z' sounds.
For 'l' 'r' sounds, we have very similar 'r' sound, but if you listen carefully, it is not really either 'l' or 'r.'
Check this how 'orange' sounds.
As you just notice from the sound 'orange,' we always finish any words with either vowel or 'm' 'n' 'p' 'b' 'ng' 't'. If the ending sound is 'g' like Orange, you need to put a vowel to complete the word. We put 'i.'
For 'th' in thanks, we use 's' sound, and for 'th' in mother, we use 'd' sound.
Now, if you hear any Konglish words, you will be able to understand them! Yay!! :)