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I once reviewed a student’s formal letter to a university and found it opened with “Yo, what’s good?” The student had copied the structure from a template but mixed it with text-message language. What made it worse: she’d sent it already. That’s when I understood the real challenge: letter-writing phrases aren’t just vocabulary — they’re tonal contracts. The wrong opening can undo months of careful work.
You’ll covers the phrases and structures you need to write effective letters in English across three contexts: formal business correspondence, employment-related letters, and personal social letters. Each category has opening lines, body phrases, and closing formulas that signal professionalism, warmth, or gratitude.
Key Takeaways
- Openings matter: “Dear Sir or Madam” (unknown recipient), “Dear Mr./Ms. [Name]” (known recipient). Never use “Hi” in formal letters unless you know the person well.
- Body phrase structure: Reference the reason for writing first (“With reference to…”), state your purpose, then request action.
- Closings by register: “Yours sincerely” (known name), “Yours faithfully” (unknown name), “Best regards” (neutral), “All my love” (personal/family).
- Avoid old-fashioned words: “Herewith,” “hereby,” “aforementioned” sound like 1950s legal documents. Write naturally: “You’ll find details in the attached brochure.”
- Common mistake: Learners often mix registers — using “Hey, mate” in a formal opening or “I beg to inform you” in a casual email.
Formal Letter Openings
The opening line of a formal letter is non-negotiable. It sets the tone immediately. When you don’t know the recipient’s name, use a traditional salutation. When you do know their name, use their correct title.
Salutations When You Know the Recipient’s Name
Example 1: “Dear Mr. Johnson,” — Use for men, regardless of marital status.
Example 2: “Dear Ms. Patel,” — Use for women. Ms. is always safe; it’s neutral regarding marital status.
Example 3: “Dear Dr. Chen,” — Use for anyone with a professional title (Dr., Prof., Hon., etc.). Their title takes precedence over Mr./Ms.
Salutations When You Don’t Know the Recipient’s Name
Example 1: “Dear Sir or Madam,” — Traditional and completely safe, though slightly formal.
Example 2: “To Whom It May Concern,” — Older style, but still used in very formal contexts (legal, governmental).
Example 3: “Dear Hiring Manager,” — Modern alternative, more personal than “Dear Sir or Madam” when you know the general role.
Tip: Always try to find the recipient’s name. Call the organization, check their website, or ask. “Dear Ms. Garcia” is always warmer and more professional than “Dear Sir or Madam.”
Formal Letter Body Phrases
The body of a formal letter follows a predictable structure: reference the past communication or reason for writing, state your purpose clearly, and make a request or offer information. Here are the phrases that make this work:
Phrases to Reference a Previous Communication or Context
Example 1: “With reference to your letter of 15 March…” — Standard opening when you’re responding to something received.
Example 2: “We acknowledge receipt of your application dated 3 April.” — Confirms you’ve received their document.
Example 3: “Thank you for your inquiry regarding our services.” — Warmer, more conversational version of the above.
Phrases to State Your Purpose or Action
Example 1: “I am writing to request the cancellation of my subscription.” — Direct and clear.
Example 2: “We regret to inform you that your application was not successful.” — Breaking bad news professionally.
Example 3: “Please advise whether the proposed terms are acceptable to you.” — Polite way to ask for confirmation or feedback.
Example 4: “We would appreciate it if you could provide the following information by 30 April.” — Respectful way to request information with a deadline.
Phrases for Enclosures and Attachments
Example 1: “Please find attached the invoice for services rendered.” — Formal and clear.
Example 2: “I am enclosing copies of my educational credentials.” — Slightly warmer, still professional.
Example 3: “If you require any further information, please do not hesitate to contact me.” — Standard closing line before the signature.
Business Letter Tone and Structure
Business letters require a specific balance: they should be friendly and accessible, yet professional and clear. Here’s how to achieve that:
Plan Before You Write
- Look up vocabulary first: Don’t pause mid-letter to find a word. Prepare your key terms in advance.
- Note your points in order: Logical order helps readers follow you. Opening context → your purpose → supporting details → requested action → closing.
Keep the Tone Conversational but Formal
Example (too stiff): “I hereby beg to inform you that I am in possession of your proposal.”
Example (right tone): “Thank you for sending the proposal. I’ve reviewed it carefully and have a few questions.”
Use the Word-Order Principle
When writing sentences in business letters, follow this pattern: Who — Does — What — How — Where — When.
Example 1: “Our technician will install the equipment in your office on Tuesday morning.” (Subject-Verb-Object-Place-Time)
Example 2: “Mr. Brown will travel by plane to London on Monday, June 5th.” (Subject-Verb-Manner-Place-Time)
Example 3: “I will confirm the transport arrangements as soon as possible.” (Subject-Verb-Object-Time)
Employment-Related Letters
Job applications, offer acceptances, and resignation letters follow their own format. Here are the phrases and structures that work:
Cover Letter Opening Phrases
Example 1: “I am writing in response to your advertisement for the Marketing Manager position in the Times.” — Reference where you found the job posting.
Example 2: “I am writing to apply for the post of Senior Analyst, as advertised on your company website.” — Direct and clear.
Acceptance or Declining Phrases
Example 1: “Thank you for your letter of 10 April offering me the position of Project Manager. I am delighted to accept.” — Enthusiastic and professional.
Example 2: “I am grateful for the offer, but regret to inform you that I have decided to pursue another opportunity.” — Polite way to decline.
Employment Letter Closings
Example 1: “I should be pleased to attend an interview at your earliest convenience.” — Signals availability.
Example 2: “Please do not hesitate to contact me on the above number if you require further information.” — Standard professional closing.
Example 3: “I look forward to hearing from you.” — Positive and forward-looking.
Remember: If you know the person’s name, close with “Yours sincerely.” If you don’t, use “Yours faithfully.” Both are correct; the difference signals whether you personalized your letter.
Personal and Social Letter Phrases
Personal letters allow more warmth and emotion. These phrases help you maintain professionalism while sounding genuinely affectionate:
Personal Letter Openings
Example 1: “My dear Charlotte,” — Classic, warm opening for close friends or family.
Example 2: “Dear Uncle David,” — Standard for relatives.
Example 3: “My dearest Margaret,” — Intimate, for spouses or very close family.
Personal Letter Body Phrases
Example 1: “Thank you for your kind letter of 20 June. It was wonderful to hear from you.” — Acknowledges a letter warmly.
Example 2: “I am delighted to announce that we are expecting our second child.” — Shares good news.
Example 3: “I was sorry to hear about your mother’s illness. Please know that you are in my thoughts.” — Offers sympathy.
Personal Letter Closings
Example 1: “All my love,” — For spouses, closest family.
Example 2: “With love and best wishes,” — Warm, sincere, for close friends.
Example 3: “Kindest regards,” — For acquaintances, less intimate relationships.
Comparing Formal, Business, and Personal Register
| Letter Type | Opening | Body Phrase | Closing |
|---|---|---|---|
| Formal (government / legal) | Dear Sir or Madam | With reference to your letter dated… | Yours faithfully |
| Business (B2B / professional) | Dear Ms. Johnson | Thank you for your inquiry… | Yours sincerely |
| Job application | Dear Hiring Manager | I am writing to apply for… | Yours sincerely |
| Personal (friend / family) | My dear Catherine | Thank you for your lovely letter… | All my love |
Sample Letter Dialogues
Email version of a formal request (between colleagues who know each other)
Sender: Hi Sarah, I hope this finds you well. I’m writing to request approval for the quarterly budget. Could you let me know by Friday whether you need any additional information? Thanks so much.
Response: Hi [Name], Thanks for sending that over. I’ve reviewed it and have a couple of questions. Can we schedule a 15-minute call on Thursday? I want to clarify the staffing costs.
Common Mistakes Learners Make
✗ Incorrect: “Dear Sir or Madam, Hey, I’m writing about my job application…”
✓ Correct: “Dear Hiring Manager, I am writing to follow up on my application for the Marketing Manager role submitted on 10 March.”
Why: Mixing formal openings with casual body language breaks the register. Choose one and stay consistent.
✗ Incorrect: “Yours faithfully, [name]” (when you used “Dear Mr. Johnson,”)
✓ Correct: “Yours sincerely, [name]” (because you used the person’s name)
Why: “Yours sincerely” pairs with known names; “Yours faithfully” pairs with unknown recipients (“Dear Sir or Madam”).
✗ Incorrect: “I am herewith sending you the documents aforementioned in your letter of last week.”
✓ Correct: “I am sending you the documents you mentioned in your letter last week.”
Why: Words like “herewith,” “aforementioned,” and “hereby” sound archaic. Modern business English is direct and clear.
✗ Incorrect: In a cover letter: “I have enclosed my résumé, and I’m stoked about this job!”
✓ Correct: “I have enclosed my résumé and am very interested in this opportunity.”
Why: “Stoked” is slang. In professional letters, use “interested,” “excited,” or “eager” instead.
Quick Quiz
- You’re writing to someone whose name you don’t know. How should you close the letter? → (a) Yours sincerely (b) Yours faithfully (c) All my love
- Which opening is best for a formal job application? → (a) Dear Sir or Madam (b) Hi there (c) Dear Hiring Manager
- Your business letter says “Dear Mr. Chen,” so how should you close? → (a) Yours faithfully (b) Yours sincerely (c) See you later
- Which phrase is most appropriate in formal business correspondence? → (a) Herewith I send you (b) I’m sending you attached (c) I am sending you the attached documents
- In a cover letter, which is acceptable? → (a) “I am writing to apply for the position.” (b) “Yo, I want this job.” (c) “I’m applying because I need money.”
Answers: 1. (b) Yours faithfully · 2. (c) Dear Hiring Manager · 3. (b) Yours sincerely · 4. (c) I am sending you the attached documents · 5. (a) I am writing to apply for the position
The Five-Step Letter-Writing Process
I. Pre-Writing: Time to Plan
- What is the main purpose of your letter?
- Who is the recipient, and what tone should you use?
- What information or documents do you need to include?
- What action or response are you requesting?
II. Drafting: Time to Write It Down
- Write your opening: state who you are and why you’re writing.
- Organize your points logically — context first, then purpose, then supporting details.
- Keep sentences and paragraphs short. Aim for 3–4 sentences per paragraph.
III. Revising: Time to Improve
- Read your letter aloud. Does it sound natural?
- Is the information clear and in logical order?
- Have you included all necessary details (dates, amounts, names, references)?
- Is the tone appropriate for your audience?
IV. Editing: Time to Correct
- Check spelling, capitalization, and punctuation.
- Verify that names, titles, and dates are spelled correctly.
- Ensure your sentences are complete — no fragments or run-ons.
- Have someone else read it if possible.
V. Publishing: Time to Send
- Format your letter properly: include your address, date, recipient’s address, and signature block.
- For business letters, use a standard font (Times New Roman, Arial) in 11–12 pt.
- Proofread one final time before sending.
Related Phrases and Articles
- How to Write Professional Emails in English
- Business Letter Format and Structure
- Essential Cover Letter Phrases
- Formal Letter Salutations and Closings
- ↑ Back to pillar: English Expressions (Pillar)
Frequently Asked Questions
What’s the difference between “Dear Sir” and “Dear Sir or Madam”?
“Dear Sir” assumes the recipient is male and is considered outdated. “Dear Sir or Madam” is inclusive and standard in formal correspondence when you don’t know the recipient’s gender. Best practice: find the person’s name and use it.
Can I use “Hi” or “Hello” in a formal business letter?
No. “Hi” and “Hello” are too casual for formal letters and formal business correspondence. Use “Dear” followed by a title and name, or a salutation like “Dear Hiring Manager.” Save “Hi” for casual emails to people you know well.
When do I use “Yours sincerely” versus “Yours faithfully”?
“Yours sincerely” is used when you’ve addressed the recipient by their name (“Dear Mr. Johnson”). “Yours faithfully” is used when the recipient’s name is unknown (“Dear Sir or Madam”). Both are equally formal; the difference signals whether you personalized the letter.
Is it okay to include emojis in business letters?
No. Emojis are inappropriate in formal and business letters, even if you’re friendly with the recipient. Use them in casual personal messages, but keep business correspondence text-only and professional.
How long should a business letter be?
Aim for one full page (250–400 words). If your letter is longer than one page, you may have included unnecessary information. Business readers value brevity — get your point across clearly and concisely.
Related
- ↑ Master Pillar: English Speaking
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