The expression 은/는 커녕 is employed in Korean to emphasize a strong contrast or negation, usually translated as "let alone" or "never mind". It's used to indicate that not only is a lesser or expected condition not met, but even a more basic or fundamental condition is unfulfilled.
This structure is effective in highlighting the absence or unlikelihood of something.
Grammar Rule: Noun/Verb + 은/는 커녕 + Emphasized Noun/Verb + 도 (for emphasis)
Here are various examples showcasing this grammar pattern:
은/는 커녕 is an invaluable tool in the Korean language for drawing strong contrasts or expressing the absence of something, even more basic or expected. This pattern can add dramatic emphasis and nuance to your Korean sentences.