full form vs contraction in Korean

Just like full form and contraction in English, Korean is similar. However there are many grammar particles in Korean, so there are more variety and complexity. The most important rule should be that the syllable in front of the marker does not end in a consonant. For example, if '저는' is shortened, it becomes '전'. Because there is no last consonant in the preceding syllable, so the following syllable can be shortened in the last consonant. pronoun + subject marker 저는 I am -> 전 I'm 나는 I am -> 난 I'm 너는 You are -> 넌 You're 그는 He is -> 근(X) He's 그것이 It is -> 그게 It's pronoun + object marker 저를 I/me -> 절 I/me 나를 I/me -> 날 I/me 너를 you -> 널 you 그를 him -> 글 (X) him 그것을 it -> 그걸 it Of course there are some exceptions. In the case of '그는' which measn 'he is', it does not diminish to '근'. Always write in full form. There are several cases where the form is completely changed. In case of the abbreviation for '그것이' is '그게'. In Korean, most abbreviations are used when speaking. Use full form only when presenting or writing. Therefore, you need to get used to using abbrevations to use Korean naturally.