Formal vs Informal English — Choosing the Right Register
Imagine Ravi, a brilliant software engineer in Bengaluru. He has just fixed a complex bug and sends his manager a quick Slack message: “Hey, fixed the bug. Check it out!” Later that day he writes to a potential client in London in the same tone: “Hey, here is the quote. Let me know if you like it!” The first message fits his casual office culture; the second might make the client question his professionalism. And if Ravi told his work friend Priya, “I am writing to inform you that I shall be arriving at the cafeteria at 1:00 PM,” she would think he’d lost his mind.
This is the challenge of register. In the Indian job market, your choice of words is often read as a sign of professional maturity, and in an IELTS General Training letter the wrong register costs marks. This lesson shows you how to recognise each level of formality and switch between them with confidence.
Register is the level of formality in your language. It is not about being grammatically ‘right’ or ‘wrong’; it is about social appropriateness. Formal English with a friend sounds stiff; informal English with a client sounds unprofessional.
1. What Is Register? Context Is Everything
Imagine you are running late for a meeting. To your best friend on WhatsApp you might write, “Hey, stuck in traffic. Be there in 10.” Sent to a Senior Vice President at an MNC, the same message looks lazy and over-familiar. And if you emailed your friend, “I regret to inform you that my arrival will be delayed by ten minutes due to unforeseen vehicular congestion,” they would think you were joking.
❌ Wrong Context: (To a Senior Manager) “Hey, can you help me out with this?”
✅ Correct Register: “I would appreciate your assistance with this matter.”
❌ Wrong Context: (To a close colleague on chat) “I require your immediate assistance regarding the lunch menu.”
✅ Correct Register: “Can you help me pick what to order?”
Register is like a dress code. You wouldn’t wear a tuxedo to the gym or flip-flops to a job interview at TCS or Infosys. Your vocabulary has to match the ‘room’ you are in.
2. The Formality Spectrum: Not Just On or Off
Formality isn’t a switch; it’s a sliding scale. Most learners get stuck at the extremes, but most everyday communication happens in the middle:
- Very Formal: legal documents, UPSC essays, academic journals. (“The undersigned acknowledges receipt of…”)
- Formal: business emails to clients, cover letters, IELTS formal letters. (“Thank you for your consideration.”)
- Neutral: the “safe zone”: professional but not stiff. Meetings, routine emails and reports. (“I’ve updated the project status.”)
- Informal: colleagues you know well, quick WhatsApp updates. (“I’m on my way.”)
- Very Informal: slang, memes, family chat. (“Arre, don’t worry, it’s sorted!”)
3. Vocabulary Switches: From Daily Talk to Boardroom Talk
One of the easiest ways to raise your register is to swap common, multi-purpose verbs for more specific Latinate ones (words from Latin, which sound more formal in English). Casual English uses many phrasal verbs (a verb + a particle, like ‘get out’ or ‘set up’); formal English prefers a single, precise verb.
| Informal/Neutral | Formal | Contextual Example |
|---|---|---|
| Start | Commence | The board meeting will commence at 9 AM sharp. |
| End / Stop | Terminate | The contract was terminated due to a breach of terms. |
| Continue | Proceed | Please proceed to the next stage of the application. |
| Stop | Cease | The company has decided to cease operations in that region. |
| Try | Endeavour | We will endeavour to resolve the issue within 24 hours. |
| Ask | Request | I am writing to request a copy of the annual report. |
| Get | Obtain | It is necessary to obtain a permit before starting construction. |
| Live | Reside | The applicant currently resides in Hyderabad. |
Linking and structural words change too. Informal English uses simple or vague words; formal English uses precise ones that signal a logical flow, which matters in The Hindu-style writing, IELTS essays and CAT/GMAT reading.
| Informal/Neutral | Formal | Contextual Example |
|---|---|---|
| Enough | Sufficient | We do not have sufficient data to draw a conclusion. |
| Before | Prior to | Prior to joining the firm, she worked in Singapore. |
| About | Regarding | I have a question regarding the new HR policy. |
| Now | At present | At present, the system is undergoing maintenance. |
| About | With reference to | I am writing with reference to our meeting yesterday. |
| If | In the event of | In the event of a fire, please use the stairs. |
| Also / Plus | Furthermore | Furthermore, the new system reduces costs. |
| So | Consequently | Demand fell; consequently, prices dropped. |
And a quick cheat sheet of everyday switches across all three levels:
| Formal | Neutral | Informal |
|---|---|---|
| Purchase | Buy | Grab |
| Assist | Help | Lend a hand |
| Receive | Get | Pick up |
| Apologise | Say sorry | My bad |
| Require | Need | Want |
| Provide | Give | Hand over |
| Verify | Check | Make sure |
| Rectify | Fix | Sort out |
| Discuss | Talk about | Chat about |
| Vacate | Leave | Clear out |
| Utilise | Use | Go with |
4. Communication Pairs: How We Share Information
In an office, how you ‘talk about talking’ matters. Words like tell or show are functional, but inform and demonstrate add authority and respect.
✅ Inform vs. Tell: “I’ll tell you later” (informal) vs. “I will inform you of the decision by EOD” (formal).
✅ Inquire vs. Ask: “I called to ask about the price” (informal) vs. “I am calling to inquire about your service rates.”
✅ Respond vs. Reply: ‘Reply’ is fine, but ‘respond’ is common in formal service-level agreements (SLAs): “We failed to respond within the stipulated time.”
✅ Comprehend vs. Understand: “I don’t get it” (casual) vs. “I do not fully comprehend the technical details of this proposal.” (formal)
✅ Demonstrate vs. Show: “Let me show you how it works” (neutral) vs. “The data demonstrates a clear upward trend in sales.”
✅ Facilitate vs. Help: “I can help with the move” (neutral) vs. “Our team will facilitate the migration to the new server.”
✍️ Quick Practice — The Professional Switch
Rewrite these sentences to make them formal for a business email:
- I'll get back to you about the project before Friday.
- We don't have enough people to start the work now.
Answers: 1. I will respond to you regarding the project prior to Friday. | 2. We do not have sufficient staff to commence the work at present.
5. Grammar Changes with Register
Register isn’t only about vocabulary. Sentence structure shifts with formality too.
Contractions
The fastest way to make a sentence formal is to drop contractions: don’t → do not, I’m → I am, can’t → cannot. In informal contexts contractions are natural and expected.
| Formal | Informal |
|---|---|
| I do not believe this is feasible. | I don’t think it’ll work. |
| We will proceed with the plan. | We’ll go ahead with the plan. |
Personal vs Impersonal Sentences
In very formal writing, such as government applications, research papers or IELTS Academic essays, writers often avoid I and we to sound objective: “The data indicates a significant increase in inflation” rather than “I think the data shows a rise in inflation.”
Directness vs Politeness
Informal English is direct; formal English softens requests (“hedging”) so they sound polite rather than demanding.
| Formal | Informal |
|---|---|
| I would be grateful if you could share the report at your earliest convenience. | Can you send me the report? |
| Would you mind reviewing this document? | Could you check this for me? |
6. Common Indian English Register Errors
Indian learners often mix very old-fashioned formal language with modern informal words, creating a ‘clash’ of registers. Here are the most common errors and their fixes.
A. Excessive “Sir/Madam”
In global companies, “Sir” or “Madam” every few words sounds subservient rather than professional.
❌ Over-formal: “Yes Sir, I will do it Sir, thank you Sir.”
✅ Professional: “Yes, I will handle that. Thank you.”
B. “Please do the needful”
This phrase is a relic of colonial-era office English and is rarely used by native speakers today. It sounds vague and a little demanding: say what you actually need.
❌ The Error: “I have attached the bill. Please do the needful.”
✅ The Fix: “I have attached the bill. Please process the payment.”
C. “Kindly” overload and “Kindly revert”
Kindly sounds polite, but overused it makes an email feel outdated or even passive-aggressive. And revert means to go back to a previous state (‘The system reverted to its old settings’); it does not mean ‘to reply’.
❌ The Error: “Kindly revert at the earliest.”
✅ The Fix: “I look forward to hearing from you.” or “Please let me know your thoughts when you have a moment.”
D. The “above-mentioned” Trap
“Above-mentioned” belongs in formal documents, not in a WhatsApp or Slack message.
❌ WhatsApp: “Hey, did you see the above-mentioned file?”
✅ WhatsApp: “Hey, did you see that file I just sent?”
E. Mixing Registers in One Sentence
A very formal phrase in a casual sentence (or the reverse) is like pairing a tuxedo jacket with cricket shorts.
❌ Mixed: “Hey guys, I wish to express my sincere gratitude for the chai.”
✅ Consistent: “Thanks for the chai, guys! Much appreciated.”
F. Being Too Casual with Seniors
Many Indian workplaces now use first names, but being overly casual before you have built a rapport can backfire.
❌ Too casual: “Yo Arjun, what’s the status on the appraisal?”
✅ Professional: “Hi Arjun, I was wondering if there is an update on the appraisal process.”
If you’re unsure which register to use, aim for neutral. Being slightly too formal is rarely offensive, but being too casual can cost you a job, a client’s trust or marks in an exam.
7. The FACTOR Checklist
Before you hit ‘send’ or walk into an interview, run your message through FACTOR:
- F – Formality: Is this high-stakes (a job application, an IELTS letter) or low-stakes (a cricket WhatsApp group)?
- A – Audience: Are they older? A stranger? A senior official?
- C – Context: Where is this happening? A LinkedIn post needs a different register from a YouTube comment.
- T – Topic: Is the subject serious (a layoff, a complaint) or light (a team lunch)?
- O – Organisation: Does the company have a “Sir/Ma’am” culture or a “Hi” culture?
- R – Relationship: How long have you known this person?
8. Practice: Register Transformation
✍️ Scenario-Based Practice
Rewrite each message in the register indicated. Write your version before checking the model answers below.
Scenario A: Casual to Formal
WhatsApp message (rewrite as a professional email): “Hey Rahul, sorry I missed the call. I was busy with a client. Can we chat tomorrow about the budget?”
Scenario B: Stiff to Natural
Overly stiff email (rewrite in a professional but natural tone): “It is requested that you furnish the documents at your earliest convenience.”
Model Answers: A. “Dear Rahul, Please accept my apologies for missing your call earlier today. I was in a client meeting. Would you be available to discuss the budget tomorrow?” | B. “Could you please send the documents when you have a moment?”
Summary
- Register depends on context: grammar is only half the battle; tone is the other half.
- It’s a spectrum: very formal, formal, neutral, informal, very informal. When in doubt, choose neutral.
- Vocabulary: use commence, sufficient and regarding in reports and formal letters; keep start, enough and about for conversation.
- Grammar: formal English avoids contractions, prefers impersonal sentences and softens requests.
- Modernise your English: drop “do the needful”, “kindly revert” and “Sir” in every sentence, and never mix registers in one message.
Key takeaway: before you hit send, ask yourself: “Is this a ‘get/start/about’ message (neutral) or an ‘obtain/commence/regarding’ message (formal)?” Matching your words to your audience is the ultimate professional skill.