This is the 3619th most frequent Korean word.
보냈고
"Sent" (past tense of "send").
Here, '보냈고' expresses the action of 'spending time/experiences' and combines it with the concluding sentiment using '-고'.
그는 휴가 동안 많은 시간과 추억을 보냈고 만족스러웠습니다.
He spent much time and experiences during his vacation and was satisfied.
In this example, '보냈고' marks the action of 'sending' materials, linking to the subsequent action of 'waiting' with the same connector.
우리는 이메일로 자료를 보냈고 답변을 기다렸습니다.
We sent materials via email and waited for a response.
In this sentence, '보냈고' is used to indicate the past action of 'sending' ('보내다' in base form) that is connected to the following phrase 'felt happy' using the conjunctive ending '-고'.