If you write in English at work as a non-native speaker, you have probably had the feeling that something in your message sounds slightly off — even when every word is technically correct. Your manager understands you, but your emails read as a little stiff, a little wordy, or a little unsure.

This guide is for ESL professionals who want a practical, fixable list of the recurring habits that make business writing sound non-native. These are not rare grammar puzzles. They are the same patterns that show up again and again, and each one has a clear fix you can start using today. We will keep every example concrete: wrong on one side, right on the other.

1. Article usage: a, an, the, or nothing

Articles are the most common ESL tell, especially if your first language does not use them (such as Russian, Mandarin, Polish, or Korean). The basic rule is short: use a/an for one non-specific thing, the for a specific thing both you and the reader know, and no article for general plurals or uncountable nouns.

  • Wrong: I will send you report by end of day.

  • Right: I will send you the report by the end of the day.

  • Wrong: She is the experienced engineer. (when introducing her for the first time)

  • Right: She is an experienced engineer.

  • Wrong: We need to discuss the budgets in general.

  • Right: We need to discuss budgets in general.

Quick test: if you could point at the exact thing and the reader knows which one you mean, use the. If it is one example among many, use a/an. If you mean the category in general, often use no article.

You will not get every case right, and that is fine. Reading your sentence aloud catches a surprising number of missing articles, because the gap sounds wrong even when it looks acceptable.

2. Run-on and overly long sentences

Many languages favor long, layered sentences. In US business writing, long sentences usually bury the point. When a reader has to hold five ideas in their head before the verb arrives, they lose the thread.

  • Wrong: Following our meeting of last week where we discussed the timeline and also the resourcing concerns that the team raised, I wanted to circulate a summary so that everyone is aligned and we can move forward without further delays which we all agree we want to avoid.
  • Right: Here is a summary from last week’s meeting. We covered the timeline and the team’s resourcing concerns. The goal is to keep everyone aligned and avoid more delays.

The rule of thumb is one idea per sentence. If you find yourself writing and, which, so that, and because all in one line, that is a signal to break it apart. Short sentences do not sound simple or childish in English — they sound confident.

3. Over-formality and outdated phrases

A common instinct is to sound more polite by sounding more formal. In US workplaces, this often backfires: very formal or old-fashioned phrasing reads as distant, dated, or even like a template. Clear and direct is the polite default.

  • Wrong: Please be informed that the attached document is for your kind perusal.

  • Right: I have attached the document for your review.

  • Wrong: Kindly revert to me at the earliest.

  • Right: Please reply when you can, ideally by Thursday.

  • Wrong: I am writing this email to inform you that the meeting has been postponed.

  • Right: The meeting has been postponed.

Phrases like do the needful, revert back, herewith, and esteemed are technically grammatical but sound off in a US context. Aim for the tone of a competent colleague speaking in a meeting, not a legal contract.

4. Over-apologizing and hedging

Politeness in many cultures means softening every request. In English business writing, too many apologies and hedges make you sound unsure of yourself — which can undercut your authority even when your work is excellent.

  • Wrong: Sorry to bother you again, I am so sorry, but I was just wondering if maybe you could possibly take a quick look when you have a moment, if that is okay?
  • Right: Could you review this when you have a moment? Thank you.

You do not need to apologize for asking a normal work question. Replace stacked apologies with a single, warm, direct request.

  • Wrong: I think maybe this might possibly be a small issue, but I am not sure.
  • Right: I see one issue here. [State it.]

Confidence is not rudeness. Saying what you mean clearly is a sign of respect for the reader’s time.

5. Direct translation and false cognates

When you compose a sentence in your first language and translate it word for word, the grammar often survives but the meaning slips. False cognates — words that look similar across languages but mean different things — are a frequent trap.

  • Wrong: I will actualize the document. (from Spanish actualizar, to update)

  • Right: I will update the document.

  • Wrong: We need to control the numbers before the deadline. (from French/Spanish, to check)

  • Right: We need to check the numbers before the deadline.

  • Wrong: I am very sensible to your feedback. (from sensible, sensitive)

  • Right: I really appreciate your feedback.

A sentence can be 100 percent grammatical and still be wrong. Please do the needful breaks no grammar rule, but a US reader will pause. When a phrase feels translated, look it up or test it on a native speaker before sending.

Idioms are the riskiest part of this. If you are not certain an idiom works, say the plain version instead. Plain is always safe.

6. Passive voice overuse and wordiness

Passive voice is not wrong, but using it everywhere makes writing vague and hides who does what. Wordiness piles filler phrases on top. Together they are the two biggest reasons business writing feels heavy.

Cut the passive when an actor exists:

  • Wrong: The report was completed by the team and was sent to the client yesterday.
  • Right: The team completed the report and sent it to the client yesterday.

Cut filler phrases that add words but not meaning:

  • due to the fact that → because

  • in order to → to

  • at this point in time → now

  • please find attached → I have attached

  • in the event that → if

  • Wrong: Due to the fact that the deadline has been moved, an update will be provided by us at this point in time.

  • Right: Because the deadline moved, we will send an update now.

The active version is shorter, clearer, and tells the reader exactly who is responsible.

7. Tone calibration for US workplaces

Even with clean grammar, the wrong tone can make a message land badly. US business writing tends to be friendly but direct: warm enough to be human, clear enough to act on. Too formal feels cold; too casual feels careless.

  • Too formal: Esteemed colleague, I humbly request your guidance on the matter referenced below.
  • Too casual: hey can u look at this thing whenever lol
  • Right: Hi Sam, could you share your thoughts on the issue below? Thanks.

A reliable middle ground: greet the person by name, state your request or update in one or two clear sentences, and close with a short thank-you. When you are unsure, read the message as if you received it. Would it feel clear and respectful, or would it make you work to understand the point?

A quick self-check

Before you send your next important email or document, run through this list:

  • Did I check every a / an / the — and read it aloud to catch missing articles?
  • Is each sentence one clear idea, with no run-ons?
  • Did I replace dated phrases like kindly revert and please be informed?
  • Did I apologize only once (or not at all) instead of hedging repeatedly?
  • Did I check any word that might be a false cognate or a translated idiom?
  • Did I switch passive voice to active wherever an actor exists?
  • Did I cut filler like due to the fact that and at this point in time?
  • Does the tone sound like a confident, friendly colleague?

If you can answer yes to most of these, your writing already reads as clear and professional.

Conclusion

None of these mistakes mean your English is bad. They are predictable patterns that almost every non-native professional shares, and that is exactly why they are fixable. You do not need perfect English to be taken seriously at work — you need clear English that does not make the reader work harder than necessary. Pick one or two habits from this list, focus on them for a few weeks, and they will start to correct themselves.

The fastest way to improve is to see your own recurring patterns, because the mistakes you make are usually consistent. Run a draft through the Writing Clarity Checker to spot wordiness and passive voice, and when a document really matters, get honest human feedback on it. Structora offers Professional Writing Clarity — structured editing and direct feedback on your own writing, never ghostwriting — so you learn the patterns and keep the work yours. If you have a real email, report, or document you want a second set of eyes on, request a review and we will help you make it clearer.