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Use case · Professional

Writing a business email in English for Korean speakers

A Korean business email drops articles, swaps prepositions, and uses «until» for a deadline. Here's the Diglot workflow for emails that read clear and professional.

Why Korean speakers face this differently

Korean speakers writing English business email meet their L1 in grammar and register alike. Korean has no articles, so «the» drops («check attached file»); it uses postpositional particles, so prepositions get inserted or swapped («reply me», «ask a favour to you»); and the time particle behind «까지» surfaces as «until» where a deadline needs «by». On top of that, Korean business courtesy can read as over-formal in English. Diglot fixes the grammar and lands a clear, professional register.

The Diglot workflow for business email writing

  1. 1

    Draft in Korean or English

    Write the email where it is fastest. Diglot accepts Korean input and translates it to English business register, supplying the articles Korean omits.

  2. 2

    Translate to business register

    Diglot translates to clear, professional English — warm but concise — rather than carrying Korean honorific formality straight across.

  3. 3

    Run L1-aware grammar check

    Diglot catches the Korean patterns: missing articles, inserted/swapped prepositions («reply me» → «reply to me»), and «until Friday» where a deadline needs «by Friday».

  4. 4

    Right-size the courtesy

    The paraphraser trims over-formal honorific phrasing into natural English politeness, so your email reads professional without sounding stiff or distant.

  5. 5

    Proofread and send

    A final pass catches anything left, and the Authorship Certificate can log a sensitive email for your records. Copy the clean version into your mail client.

Korean → English patterns Diglot catches

Draft (Korean-influenced)CorrectedWhy
Please check attached file and reply me until Friday.Please check the attached file and reply to me by Friday.Missing article («the attached file»), «reply me» needs «reply to me» (Korean uses a particle, not a preposition), and «until» → «by» for a deadline. Patterns: `article-omission`, `missing-preposition`, `until-vs-by`.
I want to ask one favor to you.I’d like to ask you a favour.Inserted preposition «to you» (Korean particle) and a missing article. English makes «you» the indirect object directly. Pattern: `preposition-insertion`.
We will send the documents until end of this week.We’ll send the documents by the end of this week.«until» for a deadline → «by», plus a missing article on «the end». Pattern: `until-vs-by`.
I look forward to your kind reply and your kind cooperation.Thanks in advance — I look forward to your reply.Over-honorific phrasing calqued from Korean business courtesy; English business email is briefer. Pattern: `over-honorific-register`.

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Frequently asked questions

Why do I write «until» when I mean a deadline?
Because the Korean particle «까지» covers both «until» and «by», so it maps to «until» by default — but English uses «by» for a deadline («send it by Friday») and «until» only for a duration («wait until Friday»). Diglot flags this specific pattern, which is one of the most common Korean business-email slips.
Does Diglot understand Korean-specific mistakes?
Yes — it targets the specific Korean → English patterns: article omission (Korean has no articles), preposition insertion/substitution (Korean uses particles), and «until vs by». It names the pattern rather than flagging a generic «error», so you learn the rule underneath.
My emails sound too formal — can Diglot help?
Yes. Korean business courtesy can read as over-formal or distant in English. Diglot trims honorific phrasing («your kind cooperation») into natural English politeness, so you read professional and warm rather than stiff.
Can I keep a record of an important email?
Yes. The Authorship Certificate logs your keystrokes on all plans, giving you a timestamped record of exactly what you wrote — useful for a sensitive business or contractual email, separate from the writing tools.