Hi, I’m Teacher Rob!

In this lesson, I’ll show you how to use AI to write business emails in English while keeping you in control of what you say.

Do you ever paste your email into an AI tool, type “make this better” or “translate”, and get back something that sounds like a robot wrote it?

That’s why I’ve put together this lesson to help you get the best out of AI when writing emails. You’ll learn how to use AI to make your emails sound more natural while keeping control of your message.

Why Does AI-Written English Sometimes Feel Wrong?

AI tools can be very useful when you’re writing business emails in English. They can correct grammar, suggest better phrases, and help you express your ideas more clearly.

However, the result isn’t always what you want.

Sometimes an AI tool makes your email:

• Too formal. A simple message becomes something that sounds like a legal letter.
• Too long. Your original email was clear, but the AI adds unnecessary sentences.
• Too general. Important details disappear, or the message loses its purpose.
• Unlike you. The words are correct, but the email doesn’t sound like something you would normally say.

The problem is that AI doesn’t always understand the situation behind your email. It may also change your meaning while trying to improve your English.

The solution is to give it better instructions and check the result before sending it.

How to Translate an Email into Natural English

If you first write an email in your own language, you might be tempted to ask AI to translate it into English.

That can be a good starting point, but a direct translation may not sound natural. Different languages use different expressions, sentence structures, and levels of formality.

Compare these two prompts.

A basic prompt:

“Translate this email into English.”

A more useful prompt:

“Translate this email into natural, professional English. Keep my original meaning, but don’t translate word for word. Use clear language suitable for someone who is learning English. If an expression doesn’t sound natural in English, suggest a more suitable alternative.”

The second prompt gives the AI a much clearer idea of what you need.

Remember, though, that even a detailed prompt doesn’t guarantee a perfect result. Always check the final email yourself.

The Four Details AI Needs to Know

When you ask AI to improve a business email, four details can make a big difference.

1. Who are you writing to?

The language you use with a close colleague may be different from the language you use with a new customer or your manager.

Tell the AI who will receive the email.

2. What do you want to achieve?

Are you asking for information, making a complaint, arranging a meeting, or following up on an order?

Explain the purpose clearly.

3. What tone and level of English do you want?

You might want your email to sound polite, friendly, formal, or firm.

You can also ask for clear, natural English without complicated vocabulary.

4. Which facts must not change?

This is particularly important in business communication.

Names, dates, order numbers, prices, deadlines, and promises must remain accurate. Tell the AI not to change or remove these details.

Here’s an example of a more effective prompt:

“I’m writing to a supplier about a late order. I’m an intermediate English learner, so please use clear, natural business English. Keep the tone polite but firm. The order number is 4471, and the promised delivery date was 12 October. My customer is waiting for the order, so it is urgent. Please ask the supplier to confirm when it will arrive and request a reply by Friday. Do not change any facts or deadlines.”

This prompt gives the AI enough information to produce a more useful first draft.

How to Stop AI from Making Your Emails Sound Robotic

Sometimes an AI-written email is grammatically correct but doesn’t sound natural. It may use unnecessarily formal expressions or sentences that are much longer than they need to be.

You can ask the AI to make the language simpler and more natural.

For example, try this prompt:

“Please make this email sound natural and professional, as if it were written by a real person at work. Keep it polite but direct. Remove unnecessary words and avoid overly formal expressions. Explain the main changes you make.”

Asking the AI to explain its changes is especially useful if you’re learning English.

You can learn why one phrase works better than another and gradually build your own business vocabulary.

For more examples, see my guide to 25 Email Phrases That Instantly Make You Sound More Professional.

Another useful tip is to read the finished email aloud. If a sentence feels awkward or doesn’t sound like something you would normally say, ask the AI to simplify it or rewrite it.

How to Check That AI Hasn’t Changed Your Meaning

This is one of the most important steps.

AI may improve your grammar while accidentally changing what you want to say. It might remove a deadline, make a complaint sound more serious than you intended, or add a promise you never made.

Before sending an AI-assisted email, compare it with your original message.

Check these four things:

• Facts: Are all names, dates, numbers, and other details correct?
• Purpose: Does the email still say what you wanted it to say?
• Tone: Is it as polite, friendly, or firm as you intended?
• Extra information: Has the AI added anything you didn’t mean to say?

You can also ask the AI to check its own work.

Try this prompt:

“Compare the revised email with my original message. List any changes to the meaning, facts, deadlines, or level of urgency. Do not rewrite the email yet. Just explain the differences.”

This can help you spot problems, but don’t rely on the AI to catch every mistake. You are still responsible for the message you send.

A Practical Example: Improving a Business Email with AI

Let’s look at how this works in a real-world situation.

Ana is waiting for an order from a supplier. The order was promised for 12 October, but it hasn’t arrived. Her customer is waiting, so the delivery is urgent. Ana needs to know when the order will arrive and wants the supplier to reply by Friday.

Step 1: Ana writes her first draft

Ana writes:

“Dear Sir,

I write to you because the order number 4471 not arrived yet. It was promised for 12 October. I need it very urgent because my customer wait. Please you send me the information when it will arrive. Thank you for your comprehension.”

Ana’s meaning is clear enough, but some expressions are direct translations from her own language. She wants to make the email sound more natural and professional.

Step 2: Ana asks AI to improve the email

Ana enters her email and types:

“Make this better.”

The AI produces:

“Dear Sir,

I am writing to formally express my concern regarding the non-arrival of order number 4471, which was scheduled for delivery on 12 October.

I would appreciate it if you could provide an update at your earliest convenience.

Thank you for your assistance.”

This version sounds more formal, but it has some problems.

• It removes the fact that Ana’s customer is waiting.
• It doesn’t mention that the delivery is urgent.
• It doesn’t ask for a reply by Friday.
• “Formally express my concern” may sound more serious than Ana intended.

The grammar is better, but the email is less useful because important information has disappeared.

Step 3: Ana gives the AI better instructions

Ana tries again with a more detailed prompt:

“Please rewrite this email in clear, natural business English. I’m writing to a supplier about a late order. Keep the tone polite but firm. The order number is 4471, and the promised delivery date was 12 October. My customer is waiting for the order, so it is urgent. Ask when the order will arrive and request a reply by Friday. Keep all these details and don’t add new information.”

The AI produces:

“Hi Mr. Weber,

Order 4471 hasn’t arrived yet. It was promised for 12 October.

Could you tell me when it will arrive? My customer is waiting for it, so I need an answer by Friday.

Thanks,
Ana”

This is clearer and more natural. It keeps most of the important details and makes a direct request.

However, notice one small difference. Ana needs the order itself urgently, but the new email mainly says she needs an answer by Friday. Those are not quite the same thing.

Step 4: Ana checks the meaning

Ana asks the AI:

“Compare this email with my original request. Have I clearly explained that the delivery itself is urgent, as well as asking for a reply by Friday?”

She then makes a final adjustment:

“Hi Mr. Weber,

Order 4471 hasn’t arrived yet. It was promised for 12 October.

Could you tell me when it will arrive? My customer is waiting, so the delivery is urgent. Please reply by Friday.

Thanks,
Ana”

Now the email is clear, natural, and closer to Ana’s original intention.

The lesson: AI can help you write better English, but the best result comes when you give clear instructions and check the meaning yourself.

Protect Your Information When Using AI

Before copying a business email into an AI tool, check your company’s rules about using AI at work.

Be careful with confidential information. Depending on your company’s policies and the tool you’re using, you may need to remove or replace:

• Customer and colleague names.
• Account numbers and bank details.
• Passwords and login information.
• Confidential prices, contracts, or business plans.

You can often use placeholders such as “[Customer]”, “[Order Number]”, or “[Company]” instead of real details.

Never assume that information is safe to share simply because you’re using AI to improve your English.

Try This with Your Next Business Email

The next time you write an email in English, try these three steps:

1. Write your message first. Focus on what you want to say.
2. Ask AI to improve it. Explain who you’re writing to, your purpose, the tone you want, and the facts that must not change.
3. Check the result. Make sure the email still means what you intended and sounds right for the situation.

You don’t need to accept every change the AI suggests. Keep the phrases that help you communicate clearly, and question anything that sounds unnatural or changes your meaning.

If you’d like more help with business emails, start with my guide to How to Write a Business Email in English When You’re Not a Native Speaker.

You can also practise your English a little every day with my Free Daily Idiom Course, which includes an idiom, its meaning, and examples to help you understand how it’s used.

Enjoy the lesson, and I’ll see you in the next one! 😊

Teacher Rob