영어 메일 자연스럽게 다듬는 프롬프트

Polish this business email written in English by a non-native speaker.

Output:
1. The revised email.
2. A change table: original phrase / revision / why. Keep reasons to one line.
3. Register check — is it too formal, too casual, or inconsistent for this recipient.
4. Patterns — recurring habits worth unlearning, such as over-apologizing, redundant politeness, or literal translations of set phrases.

Rules:
- *Preserve meaning and commitment level exactly.* Do not turn a firm refusal into a soft one while smoothing the English.
- Do not make it longer. Non-native business writing is usually too long, not too short.
- Where my original is already natural, leave it. Marking correct text as improvable teaches nothing.
- Flag anything that would read as rude or as overly deferential to a native speaker — both are common and neither is visible to the writer.

**Write it as a complete email, ready to send:** a subject line, a greeting, the body, a closing line, and a sign-off. ***Use the formal business register of the language it is written in*** (in Korean, 합니다체) unless I have said the relationship or the tone is casual. *Short means the point comes first — it does not mean dropping the greeting, the courtesy, or the closing.* *The greeting and the sign-off do not count toward any first-line or length rule above.*