This pattern indicates that one wouldn't dare do the attached verb (run away, hit, get angry, etc.)

- the adverb 감히 means "daringly", "boldly", etc.
- usually used with action verbs

Examples:
그는 감히 반대하지 않았다./He dared not oppose me. or He did not dare to oppose me.
어떻게 감히 그런 말을 하세요?/How dare you say such a thing to me?