How to Write ChatGPT Prompts — 20 Practical Templates to Triple Your Work Productivity
The quality of your ChatGPT prompts determines the quality of the results. When you write prompts using a three-step structure of assigning a role, providing context, and specifying the output format, your results can improve by more than threefold. This article introduces 20 practical templates for different work tasks.
Key Summary: The quality of your ChatGPT prompts determines the quality of the results. When you write prompts using a three-step structure of assigning a role → providing context → specifying the output format, your results can improve by more than threefold. This article introduces 20 practical templates for different work tasks.
Key Answer: You can improve result quality by threefold through better prompt writing.
Why Prompt Writing Matters
| Item | Value |
|---|---|
| Work time saved | 2-4 hours |
| Result quality improved | More than 3x |
If you ask ChatGPT, "Write me an email," you will get an ordinary result. But if you say, "You are a business communication expert with 10 years of experience. Please write an email for the situation below..." you can get a much more refined result.
Prompt engineering is the skill of giving AI precise instructions. As of 2026, many office workers are using this skill to reduce their daily workload by 2-4 hours.
The Golden Prompt Structure — A 3-Step Formula
[Assign a role] + [Context/background] + [Output format/conditions]| Step | Description | Example |
|---|---|---|
| Assign a role | Give the AI an expert persona | "You are a marketing expert" |
| Provide context | Specify background information, purpose, and audience | "For a B2B SaaS product..." |
| Output format | Define the desired result in detail | "3 items, each within 50 characters" |
Following just these three steps will immediately improve response quality.
20 Practical Prompts by Task
📧 Email Writing (1-4)
#1. Polite Rejection Email
You are a business communication expert.
Situation: [Recipient name] has requested [request details], but it is difficult to accept.
Conditions: Decline politely and clearly while maintaining the relationship. Within 200 characters.
Output: Write only the email body#2. Follow-Up Email
You are a sales expert.
Situation: Three days have passed since [meeting/proposal], and there has been no response.
Conditions: Remind them naturally without pressure. Within 3 sentences.
Additional: Include a sentence suggesting the next action (call or meeting)#3. Apology Email
Role: Customer service expert
Situation: We caused inconvenience to the customer due to [problem situation].
Requirements: Sincere apology + solution + promise to prevent recurrence
Format: 3 paragraphs, 2-3 sentences each#4. Project Progress Report Email
You are a project manager.
Data: Progress [XX]%, completed items [list], issues [details]
Recipient: Senior executive (non-technical)
Format: Bullet points + key metrics in table format📄 Document Writing (5-8)
#5. Proposal Draft
You are a planner with 10 years of experience.
Topic: [Proposal topic]
Purpose: [Goal to achieve]
Audience: [Readers/decision-makers]
Format: Write using the structure Background → Goals → Strategy → Timeline → Budget → Expected impact
Length: 3-5 lines per section#6. Meeting Minutes
Role: Professional document editor
Input: [Paste meeting transcript/notes]
Format: Attendees, discussion points, decisions, action items by owner, next meeting schedule
Additional: Mark ambiguous items as [Needs confirmation]#7. Report Summary (Executive Summary)
Summarize a long report into an Executive Summary for C-level executives.
Original text: [Paste report content]
Conditions: 3 key insights, 2 recommendations, within 200 characters total
Format: Bullet points#8. Policy/Regulation Document Draft
You are a professional document writer on the legal team.
Topic: [Policy name] (example: remote work policy)
Conditions: Clear and without legal ambiguity. Based on Korean labor law.
Structure: Purpose → Scope → Detailed rules → Exceptions → Actions in case of violation💡 Idea Generation (9-12)
#9. Brainstorming
You are a creative director.
Goal: [Goal/problem to solve]
Constraints: [Budget, time, and resource limits]
Request: 10 ideas in completely different directions. 2 lines each.
Criteria: Prioritize originality; feasibility can be considered later#10. Competitor Analysis Framework
Role: Market research analyst
Competitor: [Competitor name or characteristics]
Analysis items: Strengths, weaknesses, opportunities, threats (SWOT) + differentiation points
Output: Organize in table format#11. Marketing Copywriting
You are a copywriter with 10 years of experience in major corporate ad campaigns.
Product: [Product name + 2 key features]
Target: [Age group, occupation, interests]
Channel: [Instagram/blog/YouTube thumbnail]
Request: 5 high-click-through headlines + 2 body copy options#12. Naming Ideas
Role: Brand naming expert
Target: [Service/product description]
Conditions: 5 English names and 5 Korean names that are easy to pronounce and memorable
Additional: One line explaining the meaning of each name and why it was chosen📊 Data Analysis (13-16)
#13. Data Interpretation
Role: Data analyst
Data: [Paste table/numbers]
Question: What are the 3 most important insights from this data?
Additional: Include outliers and noteworthy trends
Format: Insight → Evidence → Recommended action#14. A/B Test Design
You are a growth hacking expert.
Hypothesis: [Element to change] will improve [metric]
Request: Test design (define control/experimental groups, sample size, duration, success criteria)
Format: As an actionable checklist#15. KPI Dashboard Design
Role: Business intelligence expert
Business: [Business type]
Goal: [Core business objective]
Request: 10 core KPIs + each metric's target, measurement method, and owner in table format#16. Excel Formula Writing
Please write an Excel formula for the following task.
Data structure: [Sheet name and cell location description]
Goal: [Desired calculation/analysis]
Conditions: Based on Office 365; include step-by-step explanations for complex formulas🎯 Other Practical Work (17-20)
#17. Interview Preparation (Answer Practice)
You are an HR expert and interviewer.
Role: [Position applied for]
Question: "[Interview question]"
My experience: [Summary of relevant experience]
Request: Draft a 2-minute answer using the STAR method (Situation-Task-Action-Result)#18. Contract Review Points
You are a corporate legal attorney.
Contract type: [Type of contract]
Contract content: [Paste or describe]
Request: List the key clauses to review, risk items, and negotiation points
Note: Intended as a review guide, not legal advice#19. Presentation Structure Design
Role: Former McKinsey consultant
Presentation purpose: [Persuasion/reporting/training]
Topic: [Topic]
Audience: [Position/background]
Time: [Presentation length]
Request: A 7-10 slide structure with slide titles and key messages#20. SNS Content Calendar
You are a social media manager.
Brand: [Brand/account characteristics]
Channel: [Instagram/LinkedIn/X]
Period: 2 weeks (14 days)
Request: Posting topic, content type, and hashtags by date in table format7 Core Principles for Writing Prompts
- 1The more specific, the better: Use "within 200 characters" instead of "short"
- 2Assign a role: Start with "You are a ~ expert"
- 3Specify the output format: State table, bullets, paragraphs, etc.
- 4Provide constraints: Budget, time, limitations
- 5Give an example: "In this style" + one example
- 6Break it into steps: Split complex tasks into multiple prompts
- 7Use a feedback loop: Review the result and add instructions such as "make it more concise" or "make it more detailed"
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FAQ
Q1. Do I need special skills to write ChatGPT prompts?
A. Specificity matters more than technical skill. Once you learn the three-step structure of role + context + output format, anyone can use it right away.
Q2. Do longer prompts produce better results?
A. Not necessarily. What matters is communicating the necessary information clearly. Unnecessary information can actually dilute the result.
Q3. What should I do when ChatGPT gives incorrect information?
A. Add an instruction such as "Please provide the sources for this information" or "Please review this from another perspective." Important facts should always be verified separately.
Q4. Is it better to write prompts in Korean or English?
A. If you need Korean output, it is convenient to write the prompt in Korean. However, for technical or specialized topics, English prompts may produce better results because of the larger volume of training data.
Q5. What is the difference between the free and paid versions of ChatGPT?
A. The free version (GPT-3.5/GPT-4o mini) is sufficient for basic tasks. The paid version (ChatGPT Plus, $20/month) supports longer document processing, image generation, and plugins.
Q6. Is it okay to enter company confidential information into ChatGPT?
A. Never enter company confidential information or personal data. It may be used as ChatGPT training data. Anonymize sensitive content or use an internal company-only AI system.
Reference: Bank of Korea Economic Statistics
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