봄이 되어 산에 올라가 봤습니다.
Could anyone explain the grammar point relating to 되어 here? I read that when dealing with 하다 verbs, most of the time you can simply exchange 하다 with 되다, to make that verb passive. For example:
포함하다 = to include 포함되다 = to be included
제공하다 = to provide 제공되다 = to be provided
대체하다 = to replace 대체되다 = to be replaced
However, does the part "봄이 되어" have anything to do with passive? Also why do we add 어 to 되 in this example?