The feet move first: -(으)러

Where the picture shows up in -(으)러

1. 1

   the errand you carry out

   점심 먹으러 갑시다.

   jeom-sim meo-geu-reo gap-si-da

   Let's go get lunch.

2. 2

   why you went that far

   친구 만나러 홍대에 갔어요.

   chin-gu man-na-reo hong-dae-e ga-sseo-yo

   I went to Hongdae to meet a friend.

3. 3

   a quick trip out and back

   약 사러 약국에 다녀올게요.

   yak sa-reo yak-gu-ge da-nyeo-ol-ge-yo

   I'll run to the pharmacy for some medicine.

4. 4

   what brought you here

   택배 찾으러 왔는데요.

   taek-bae cha-jeu-reo wan-neun-de-yo

   I'm here to pick up a parcel.

5. 5

   a trip you keep making

   매주 수영하러 다녀요.

   mae-ju su-yeong-ha-reo da-nyeo-yo

   I go swimming every week.

   Only verbs of movement — 가다, 오다, 다니다 — may follow -(으)러. 먹으러 공부해요 is wrong.