신고하지

In a sentence

• 그는 나를 신고하지 않을 거예요.

  He will not report me.

  Here, '신고하지' is part of the phrase '신고하지 않을 거예요', which means 'will not report'. It conveys the action of reporting, and '않을 거예요' negates it.

• 법을 위반한 경우에는 신고하지 않으면 안 됩니다.

  If a law is violated, it must be reported.

  In this sentence, '신고하지 않으면 안 됩니다' implies a necessity or obligation to report something.

• 내 휴대폰이 고장 나서 고객 서비스에 신고하지 않을 수 없었어요.

  My phone broke, so I had no choice but to report it to customer service.

  Here, '신고하지 않을 수 없었어요' expresses inevitability, meaning 'could not avoid reporting'.