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In Business English, tiny words decide big outcomes. Shall is one of those words.
Schoolbooks often say shall = will. Real business doesnโ€™t. In contracts, emails, and at the negotiating table, using (or avoiding) shall changes meaning, leverage, and risk.


Key takeaways (read this first)

  • In contracts, shall traditionally signals a binding obligation on the subject (The Buyer shall payโ€ฆ). Many modern drafters replace it with must for clarity. World Institute on DisabilityGOV.UKHolland & Knight
  • In everyday business English, shall is rare (except fixed polite British offers like Shall we begin?). Prefer will / should / would in speech and email.
  • In EU legislation, shall (not) still appears to impose duties and prohibitions in English versions of legal acts; be careful translating. European Commission
  • Use a decision matrix: must = obligation, will = future fact/promise, may = discretion/permission, should = recommendation, shall = (only if your style guide allows) obligation on the subject. World Institute on DisabilityGOV.UKAdams on Contract Drafting

1) What grammar says vs what business needs

Traditional grammar: shall once marked the future with I/we; will with you/he/she/they. In modern usage, will dominates and shall is rare outside formal/legal contexts.

Business reality: modern drafting and government style guides in the US and UK recommend avoiding legislative shall; use must for obligations because itโ€™s clearer and harder to misuse. World Institute on DisabilityGOV.UK

EU note (English text): EU legislative English still uses shall not for prohibitions and shall in some duty formulas; check the latest EU English Style Guide before changing legacy language. European Commission


2) The decision matrix (use this when you draft)

  • MUST โ€” duty/obligation (best plain-English choice in many jurisdictions and corporate styles).
    • The Supplier must deliver within 10 days.
    • UA: ะŸะพัั‚ะฐั‡ะฐะปัŒะฝะธะบ ะทะพะฑะพะฒโ€™ัะทะฐะฝะธะน ะฟะพัั‚ะฐะฒะธั‚ะธ ะฟั€ะพั‚ัะณะพะผ 10 ะดะฝั–ะฒ.
    • RU: ะŸะพัั‚ะฐะฒั‰ะธะบ ะพะฑัะทะฐะฝ ะฟะพัั‚ะฐะฒะธั‚ัŒ ะฒ ั‚ะตั‡ะตะฝะธะต 10 ะดะฝะตะน.
  • WILL โ€” future fact, promise, or allocation of risk (not an obligation by itself).
    • Payment will occur by wire transfer.
    • UA: ะžะฟะปะฐั‚ะฐ ะฒั–ะดะฑัƒะดะตั‚ัŒัั ะฑะฐะฝะบั–ะฒััŒะบะธะผ ะฟะตั€ะตะบะฐะทะพะผ.
    • RU: ะžะฟะปะฐั‚ะฐ ะฑัƒะดะตั‚ ะพััƒั‰ะตัั‚ะฒะปะตะฝะฐ ะฑะฐะฝะบะพะฒัะบะธะผ ะฟะตั€ะตะฒะพะดะพะผ.
  • MAY โ€” discretion/permission (donโ€™t use for obligations).
    • The Buyer may inspect the Goods within 5 days.
    • UA: ะŸะพะบัƒะฟะตั†ัŒ ะผะฐั” ะฟั€ะฐะฒะพ ะพะณะปัะฝัƒั‚ะธ ะขะพะฒะฐั€ ะฟั€ะพั‚ัะณะพะผ 5 ะดะฝั–ะฒ.
    • RU: ะŸะพะบัƒะฟะฐั‚ะตะปัŒ ะฒะฟั€ะฐะฒะต ะพัะผะพั‚ั€ะตั‚ัŒ ะขะพะฒะฐั€ ะฒ ั‚ะตั‡ะตะฝะธะต 5 ะดะฝะตะน.
  • SHOULD โ€” recommendation/best practice (not enforceable on its own).
    • The Parties should promptly notify material changes.
    • UA: ะกั‚ะพั€ะพะฝะฐะผ ะฒะฐั€ั‚ะพ ะฝะตะฒั–ะดะบะปะฐะดะฝะพ ะฟะพะฒั–ะดะพะผะปัั‚ะธ ะฟั€ะพ ั–ัั‚ะพั‚ะฝั– ะทะผั–ะฝะธ.
    • RU: ะกั‚ะพั€ะพะฝะฐะผ ัะปะตะดัƒะตั‚ ะฝะตะทะฐะผะตะดะปะธั‚ะตะปัŒะฝะพ ัะพะพะฑั‰ะฐั‚ัŒ ะพะฑ ััƒั‰ะตัั‚ะฒะตะฝะฝั‹ั… ะธะทะผะตะฝะตะฝะธัั….
  • SHALL โ€” use only if your style guide requires/permits it, and only to impose duty on the subject (avoid shall be for future facts). Adams on Contract Drafting
    • The Buyer shall pay the Price by 30 September.
    • UA: ะŸะพะบัƒะฟะตั†ัŒ ะทะพะฑะพะฒโ€™ัะทะฐะฝะธะน ัะฟะปะฐั‚ะธั‚ะธ ะฆั–ะฝัƒ ะดะพ 30 ะฒะตั€ะตัะฝั.
    • RU: ะŸะพะบัƒะฟะฐั‚ะตะปัŒ ะพะฑัะทะฐะฝ ัƒะฟะปะฐั‚ะธั‚ัŒ ะฆะตะฝัƒ ะดะพ 30 ัะตะฝั‚ัะฑั€ั.

Why this matrix?
US federal and UK parliamentary guidance: prefer must over shall to impose duty; reserve will for futurity/facts. This reduces disputes over whether a clause was merely predictive. World Institute on DisabilityGOV.UK


3) Contract hotspots where shall breaks (and how to fix)

  1. Obligation vs future fact
  • Weak: The Parties will comply with all applicable laws.
  • Strong: The Parties must comply with all applicable laws. (or shall, if required) World Institute on Disability
  1. โ€œShall be liableโ€ vs clear allocation
  • Vague: The Seller shall be liable for defects.
  • Clear: The Seller is liable for defects thatโ€ฆ / The Seller must indemnify the Buyer againstโ€ฆ
  1. Prohibitions
  • Risky: The Supplier may not disclose Confidential Information.
  • Safer: The Supplier must not discloseโ€ฆ or โ€ฆshall not discloseโ€ฆ (for EU legislative English). European Commission
  1. Entitlements
  • Wordy: The Buyer shall be entitled to a refund ifโ€ฆ
  • Clean: The Buyer may receive a refund ifโ€ฆ / The Buyer is entitled to a refund ifโ€ฆ
  1. โ€œShall ensure / shall procure thatโ€ (common in English law)
  • Often better as: The Supplier must ensure that its Subcontractors comply withโ€ฆ (Avoid bare shall procure that unless your house style requires it.)
  1. Definitions & recitals
  • Donโ€™t use shall in definitions/recitals: those sections describe reality, not duties. Use present simple: โ€œAgreementโ€ meansโ€ฆ

๐Ÿ”Ž Background and style guidance on dropping legislative shall in favor of must: US Federal Plain Language Guidelines; UK drafting guidance. For contracts, see Ken Adamsโ€™ analysis of using shall only to impose duty on the subject. World Institute on DisabilityGOV.UKAdams on Contract Drafting


4) Emails, meetings, trade fairs: what sounds right

British offers (polite/formulaic):

  • Shall we begin? / Shall I send the draft?
    American/neutral alternatives:
  • Should we get started? / Would you like me to send the draft?

Avoid in speech/email:

  • We shall discuss it tomorrow. โ†’ sounds stiff.
  • Prefer: Weโ€™ll discuss it tomorrow. / Letโ€™s discuss it tomorrow.

Micro-translation tip (offer โ†’ permission):

  • Shall we schedule the site visit? โ†’
    • UA: ะœะพะถะตะผะพ ะทะฐะฟะปะฐะฝัƒะฒะฐั‚ะธ ะฒะธั—ะทะด ะฝะฐ ะพะฑโ€™ั”ะบั‚?
    • RU: ะœะพะถะตะผ ะทะฐะฟะปะฐะฝะธั€ะพะฒะฐั‚ัŒ ะฒั‹ะตะทะด ะฝะฐ ะพะฑัŠะตะบั‚?

5) EU/UK/US/Ukraine โ€” how styles collide

  • US (govโ€™t & many corporates): drop shall, use must for duties; will for future facts. World Institute on Disability
  • UK (legislation office): policy is to avoid legislative shall; there may be legacy exceptions. GOV.UK
  • EU legislative English: still uses shall/shall not in many provisions; check the current EU English Style Guide before redrafting legacy EU-derived text. European Commission
  • Ukraine (translation practice): map must/shall โ†’ ะทะพะฑะพะฒโ€™ัะทะฐะฝะธะน / ะผะฐั”; map may โ†’ ะผะฐั” ะฟั€ะฐะฒะพ; prefer present for facts (is liable, is entitled) to avoid mixing obligation with prediction.

Practical rule for cross-border contracts: pick one obligation verb across the document (must or shall, per house style) and use it consistently; reserve will strictly for non-obligatory futurity. This mirrors best-practice drafting guidance and reduces ambiguity. World Institute on DisabilityAdams on Contract Drafting


6) Translatorโ€™s corner (micro-glossary with context)

  • shall / must (duty) โ†’ UA: ะทะพะฑะพะฒโ€™ัะทะฐะฝะธะน / ะผะฐั”; RU: ะพะฑัะทะฐะฝ
  • will (future fact/promise) โ†’ UA: ะฑัƒะดะต / ะฒั–ะดะฑัƒะดะตั‚ัŒัั; RU: ะฑัƒะดะตั‚ / ัะพัั‚ะพะธั‚ัั
  • may (permission) โ†’ UA: ะผะฐั” ะฟั€ะฐะฒะพ; RU: ะฒะฟั€ะฐะฒะต
  • must not / shall not (prohibition) โ†’ UA: ะฝะต ะผะฐั” ะฟั€ะฐะฒะฐ / ะทะฐะฑะพั€ะพะฝัั”ั‚ัŒัั; RU: ะฝะต ะฒะฟั€ะฐะฒะต / ะทะฐะฟั€ะตั‰ะฐะตั‚ัั (choose per doc style) European Commission

7) Mini-workshop for your learner (5 minutes)

  1. Rewrite to impose obligation (not prediction):
    • The Distributor will submit monthly reports. โ†’ must/shall submitโ€ฆ
  2. Turn a prohibition that uses may not into a clear ban:
    • The Consultant may not shareโ€ฆ โ†’ must not / shall not shareโ€ฆ
  3. Fix this โ€œentitlement spaghettiโ€:
    • The Buyer shall be entitled to be given a refundโ€ฆ โ†’ The Buyer is entitled to a refundโ€ฆ

8) Quick audit checklist (before you sign)

  • One obligation verb across the document (must or shall) โ€” no mixing. World Institute on DisabilityAdams on Contract Drafting
  • Prohibitions use must not / shall not, not may not, unless your legislative style requires otherwise. European Commission
  • Facts use is/are/will, not shall be.
  • Entitlements use is entitled to / may, not shall be entitled to.
  • Definitions/recitals have no shall.
  • Email & speech avoid stiff shall; use natural offers/requests.

9) Further reading (authorities & style guides)

  • US: Federal Plain Language Guidelines โ€” โ€œuse must instead of shall.โ€ World Institute on Disability
  • UK: Drafting guidance (Bills for Parliament) โ€” policy โ€œavoid the legislative โ€˜shallโ€™.โ€ GOV.UK
  • EU: English Style Guide (2025) โ€” notes on using shall not for prohibitions. European Commission
  • Contracts practice: Ken Adams on disciplined use of shall in contracts. Adams on Contract Drafting

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Authorโ€™s profile: Tymur Levitin
Founder, Director, and Senior Teacher at Levitin Language School / Start Language School by Tymur Levitin
ยฉ Tymur Levitin