B1 · Intermediate TOEIC 405–600 IELTS 4.0–5.0 Modality (Modal Verbs)

Shall

Shall is used for offers (Shall I?) and suggestions (Shall we?) in everyday British English, and for binding obligations in formal and legal contexts.

1. Overview & Concept

  • What is it? Shall is a modal verb used primarily in British English. It has two core uses: making offers and suggestions (with I/we), and expressing future actions in a formal register.
  • Purpose: To offer help, make suggestions, and in formal/legal writing to express obligation or future certainty.
  • Note: In everyday modern English, shall is largely replaced by will for future and should for suggestions. It survives mainly in questions with I and we.

2. Structure & Formula

Form Structure Example
Offer/suggestion Shall I/we + base verb? Shall I open the window?
Formal future Subject + shall + base verb The contractor shall complete the work by June.
Negative Subject + shall not / shan't + base verb We shan't be late.

3. Usage Rules

  • Rule 1 — Offers (Shall I…?): Use Shall I to offer to do something for someone. This is the most common everyday use.
  • Shall I carry your bags?

  • Shall I make us some tea?

  • Rule 2 — Suggestions (Shall we…?): Use Shall we to suggest a shared activity.

  • Shall we go for a walk?

  • Shall we start the meeting?

  • Rule 3 — Formal/legal future: In contracts, laws, and official documents, shall expresses a binding obligation on a third party.

  • The tenant shall pay rent on the first of each month.

  • All participants shall wear safety equipment.

  • Rule 4 — First-person formal future (British): In formal British English, shall was traditionally used with I/we to express simple future; will was used for the second and third persons. This distinction has largely disappeared in modern usage.

  • I shall return by Thursday. (formal)
  • I will return by Thursday. (normal modern usage)

4. Signal Words & Context

Context Signals
Offer Shall I…?, Can I help…?
Suggestion Shall we…?, What about…?
Legal/formal contracts, official notices, policy documents

5. Common Pitfalls

Mistake Correction Explanation
Shall he come with us? Will he come with us? Shall questions sound archaic for third-person. Use will.
You shall to finish this. You shall finish this. No to after shall.
Shall I to help? Shall I help? No to after modals.
Overusing shall for simple future Use will instead In modern English, will is the standard future modal.

6. Real-World Examples

  1. Shall I get you a glass of water?
  2. Shall we meet at seven o'clock?
  3. The company shall deliver the goods within 14 days.
  4. Shall I call a taxi?
  5. We shan't be needing your services any longer. (formal)
  6. Shall we dance?
  7. All employees shall comply with the new regulations.
  8. Shall I book a table for dinner?
  9. The parties shall resolve disputes through mediation.
  10. Shall we take a break now?

7. Summary Table

Use Who Example Register
Offer I Shall I help? Everyday (BrE)
Suggestion We Shall we go? Everyday (BrE)
Formal future/obligation All persons You shall comply. Formal/legal
Old-fashioned future (I/We) I, We I shall return. Formal/archaic

Practice Tests

Take Test
Shall — Bài Tập 1 Shall — Bài Tập 2 Shall — Bài Tập 3 Shall — Bài Tập 4 Shall — Bài Tập 5

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