The MOST important aspect of learning Korean can be Inflection( Conjugation ), which is to change the ENDING of a word to indicate grammatical function or attribute.
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[ For example ]
Walk = 걸어요
if walk = 걸으면
Will walk = 걸을 거예요
Walk but = 걷는데
Don't walk = 걷지 마요
Because walk = 걸어서
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However, to go to the next level, you have to master Irregular ENDINGS( Shapeshifters ).
