This is the 599th most frequent Korean word.
조사를
"조사를" is the object form of "조사," which means "investigation" or "survey."
Here, '조사를' refers to an investigation or detailed examination being performed.
그는 사건에 대한 조사를 진행 중이다.
He is conducting an investigation into the case.
In this context, '조사를' implies being investigated or questioned, emphasizing the action being received.
조사를 받게 되어 긴장하고 있습니다.
They are nervous because they are about to be questioned.
Here, '조사를' means conducting a detailed research or analysis for academic purposes.