Lesson 1: Professional Email Writing | Business English

Warm-up

Why Email Still Matters

Email is still the #1 business communication tool. Despite Slack, Teams, and instant messaging, email remains the backbone of professional communication — especially for external contacts, formal requests, and anything that needs a paper trail.

A well-written email gets faster responses and builds your professional reputation. A poorly written one gets ignored, misunderstood, or worse — damages your credibility. This lesson teaches the anatomy of a professional email, from subject line to signature.

Key Concepts

The Anatomy of a Professional Email

Click each card to reveal the details. Every professional email has these seven building blocks.

Subject Line

Be specific and action-oriented

"Q3 Budget Review — Action Needed by Friday" is far better than "Hi" or "Question." Your subject line determines whether someone opens your email now or never.

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Salutation

Match formality to your relationship

"Dear Ms. Johnson" (formal/first contact) • "Hi Sarah" (colleague you know) • "Hello Team" (group email). When in doubt, start more formal — you can always dial it back.

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Opening Line

State your purpose immediately

Don't bury the lead. Start with why you're writing: "I'm writing to follow up on..." or "I wanted to share the updated timeline." Busy people stop reading after two sentences.

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Body

One idea per paragraph, use bullet points

Keep paragraphs to 2–3 sentences max. Use bullet points for lists or multiple items. White space is your friend — walls of text get skimmed, not read.

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Call to Action

Be specific about what you need

"Could you please confirm by Friday?" is clear. "Let me know your thoughts" is vague. Always include what you need and when you need it.

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Sign-off

Match the tone of the email

"Best regards" (safe default) • "Kind regards" (slightly warmer) • "Thanks" (casual but professional) • "Sincerely" (very formal). Avoid "Cheers" for first contact.

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Signature

Name, title, and contact information

Include your full name, job title, company, and phone number. Keep it clean — no inspirational quotes, no ten social media links. Make it easy for people to reach you.

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Key Phrases

Essential Email Phrases

These are the phrases you'll use in nearly every professional email. Click each card to see when and how to use it.

I'm writing to follow up on...

Purpose opener

Use when referencing a previous conversation or request. Example: "I'm writing to follow up on the proposal we discussed last Tuesday."

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Please find attached...

Formal attachment reference

Standard phrase when sending documents. Example: "Please find attached the revised contract for your review." More formal alternative: "I have attached..."

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I would appreciate it if you could...

Polite request

Softens a request and sounds professional. Example: "I would appreciate it if you could review the document by Thursday." Less formal: "Could you please..."

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Could you please confirm by Friday?

Clear call to action with deadline

Combines politeness with a specific deadline. Always include a date or day — "soon" and "when you can" are too vague for business.

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Looking forward to hearing from you.

Warm closing line

A friendly way to end an email that expects a response. Slightly less formal than "I await your response" but more professional than "Get back to me."

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Please don't hesitate to reach out.

Open-door closing

Signals you're available for questions. Great for client-facing emails. Alternative: "Please feel free to contact me if you have any questions."

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Real Examples

Before & After: Email Makeover

See how the same message transforms from unprofessional to polished. Notice the difference in structure, clarity, and tone.

✉

Requesting a Project Update

Same message, two approaches

✗

Subject: hi

Hey so I was wondering about that thing we talked about last week, the project with the client, I think it was the marketing one? Anyway can you send me an update because my boss is asking and I need to know where we are with it. Also do you have the budget numbers? Thanks

✓

Subject: Apex Marketing Project — Status Update Needed by Wednesday

Hi Sarah,

I'm writing to follow up on the Apex Marketing project we discussed last Tuesday.

Could you please send me:
• Current project status
• Updated budget figures
• Any blockers or risks

I need to prepare a summary for the leadership meeting on Thursday, so I would appreciate it if you could send this by end of day Wednesday.

Thanks,
David Chen
Project Manager | Apex Division

Pattern Spotlight

The Email Register Scale

Register means the level of formality in your language. Choosing the right register for the right situation is one of the most important email skills. Getting it wrong can make you sound either stiff and cold — or unprofessional and careless.

💡 Matching Register to Situation

Register	Example Opening	When to Use
Casual	"Hey! Quick question..."	Close colleagues, informal teams
Neutral	"Hi Sarah, I wanted to check..."	Colleagues, regular contacts
Formal	"Dear Ms. Johnson, I am writing to inquire..."	First contact, clients, senior leadership
Very Formal	"Dear Sir/Madam, I wish to bring to your attention..."	Legal, government, complaints, unknown recipients

Rule of Thumb

When in doubt, go one level more formal. You can always relax your tone in the next email — but recovering from being too casual is much harder.

💡

Pro Tip

The "5-Second Test": If someone can't understand what your email wants within 5 seconds of opening it, rewrite the subject line and first sentence. Busy professionals scan — they don't read word by word. Your subject line is the headline, and your first sentence is the summary. If those two are clear, the rest of the email is just supporting detail.

Practice

Test What You've Learned

Complete these exercises to practice your professional email skills. Apply what you've learned about structure, register, and clarity.

Multiple Choice Exercise 1 of 4

Which is the best subject line for an email requesting budget approval?

Quick question about something

Q3 Marketing Budget — Approval Needed by March 15

URGENT!!!! PLEASE READ!!!!

🎉

Correct! This subject line is specific (Q3 Marketing Budget), states the action needed (Approval), and includes a deadline (March 15). A reader knows exactly what to do before opening the email.

💡

Not quite. The best answer is C. A strong subject line is specific, states the action needed, and includes a deadline. "Hi" says nothing, "Quick question" is vague, and ALL CAPS with exclamation marks looks unprofessional.

Fill in the Blank Exercise 2 of 4

Complete the professional email opening: "___ the proposal we discussed last week."

the proposal we discussed last week.

🎉

Excellent! "I'm writing to follow up on..." is one of the most useful email openers. It immediately tells the reader why you're contacting them and what this is about.

💡

Almost! The answer is "I'm writing to follow up on". This is a standard professional opener that states your purpose right away.

Multiple Choice Exercise 3 of 4

You're emailing a potential client you've never met before. Which opening is most appropriate?

Hey! Quick question for you...

Dear Ms. Patel, I am writing to introduce our services...

Yo, check this out...

Hi friend! Hope you're having an awesome day!

🎉

Perfect! For a first contact with a potential client, formal register is the right choice. "Dear Ms. Patel" shows respect, and stating your purpose immediately is professional.

💡

Not quite. The best answer is B. When emailing someone for the first time — especially a potential client — use formal register. "Dear [Title + Last Name]" is the safe choice. You can be more casual once they set the tone.

Word Order Exercise 4 of 4

Put the parts of a professional email in the correct order:

Action

Greeting

Closing

Subject

Details

Purpose

🎉

You got it! The correct structure is: Subject line first, then Greeting, state your Purpose, provide Details, include a clear Action (call to action), and end with a Closing (sign-off + signature).

💡

Close! The correct order is: Subject → Greeting → Purpose → Details → Action → Closing. Think of it as a funnel: start broad (what's this about?) and narrow down to what you need.

Key Takeaways

Subject lines are headlines — be specific about the topic and include the action needed.

State your purpose in the first sentence. Don't make readers hunt for the point of your email.

One idea per paragraph. Use bullet points for lists. White space makes emails scannable.

Match your register to the reader. Formal for new contacts, neutral for colleagues, casual for close teammates.

Every email needs a clear call to action with a specific deadline. "Could you confirm by Friday?" not "Let me know."

Use the 5-second test. If the reader can't understand what you need within 5 seconds, rewrite.

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