This is the 9247th most frequent Korean word.
걸었다가는
"If you walk" or "If one walks" (conditional with potential negative consequence).
In this sentence, '걸었다가는' is used in a conditional phrase to indicate a potential negative consequence of walking on ice.
길에 얼음이 있었어요. 거기에 걸었다가는 넘어질 수 있어요.
There was ice on the road. If you walk there, you might fall.
Here, '걸었다가는' suggests that walking around the foothills could lead to the undesirable outcome of losing your way.
산기슭에 걸었다가는 길을 잃을 위험이 있어요.
If you walk around the foothills of the mountain, you risk getting lost.
In this sentence, '걸었다가는' implies that walking alone at night might result in encountering potential dangers.