will / shall
Predictions, offers and decisions.
We use 'will' (contracted to 'll) to talk about the future in three main ways. First, for predictions — things we think or believe will happen: 'It will rain tomorrow.' 'I think she'll pass the exam.' Second, for instant decisions — choices we make at the moment of speaking: 'The phone is ringing. I'll answer it!' Third, for promises and offers: 'I'll help you with your homework.' The negative is 'will not', contracted to 'won't': 'He won't be late.' For yes/no questions we put 'will' before the subject: 'Will you come to the party?' — 'Yes, I will.' / 'No, I won't.' We also use 'Shall' with I and we to make polite offers or suggestions: 'Shall I open the window?' / 'Shall we go now?' Note that 'will' goes with ALL subjects (I/you/he/she/it/we/they) and is always followed by the base form of the verb (no -s, no -ing). For example: 'Shall I carry your bag? — Yes, please. I think it will be very heavy!'
Key terms
| Form | Structure | Example |
|---|---|---|
| Positive | Subject + will + base verb | She will come to the party. |
| Positive (contracted) | Subject + 'll + base verb | She'll come to the party. |
| Negative | Subject + will not + base verb | She will not come to the party. |
| Negative (contracted) | Subject + won't + base verb | She won't come to the party. |
| Yes/No Question | Will + subject + base verb? | Will she come to the party? |
| Short answer (Yes) | Yes, subject + will. | Yes, she will. |
| Short answer (No) | No, subject + won't. | No, she won't. |
Note: 'will' never changes — no -s, no -ing, no -ed. Always use the base form of the verb after it.
| Use | When to use it | Example |
|---|---|---|
| Prediction | You think something will happen (based on opinion or evidence) | I think it will snow tonight. |
| Instant decision | You decide something at the moment of speaking | The phone is ringing — I'll answer it! |
| Promise / Offer | You promise to do something or offer to help someone | I'll help you with your homework. |
All three uses follow the same structure: will + base verb.
| Use | Subject | Structure | Example |
|---|---|---|---|
| Offer | I | Shall I + base verb? | Shall I carry your bag? |
| Suggestion | we | Shall we + base verb? | Shall we go home now? |
'Shall' is only used with I and we. Never say 'Shall you…?' or 'Shall they…?'
- 1Step 1: Choose your subject: She
- 2Step 2: Add 'will' (same for ALL subjects — no -s): She will
- 3Step 3: Add the BASE FORM of the verb (no -s, no -ing, no -ed): She will study
- 4Step 4: Complete the sentence: She will study hard for the exam.
- 5Step 5: Make it negative — replace 'will' with 'won't', keep base form: She won't fail her exam.
- 1Situation A: You want to ask someone to do something for you: Use 'Will you…?' → 'Will you open the door, please?'
- 2Situation B: You want to offer to do something for someone else: Use 'Shall I…?' → 'Shall I open the door for you?'
- 3Situation C: You want to suggest doing something together: Use 'Shall we…?' → 'Shall we sit by the window?'
- 4Key rule: 'Shall' is only for I and we. 'Shall you' is NOT correct English.
Do NOT add -s to 'will' or to the verb after 'will'. 'Will' is the same for all subjects. WRONG: 'She wills eat.' / 'She will eats.' CORRECT: 'She will eat.' The same rule applies to 'won't' and 'shall': 'Shall we order?' (NOT 'Shall we orders?')
Do NOT use an -ing form or a past form after 'will' or 'won't'. WRONG: 'I will eating.' / 'She won't failed.' CORRECT: 'I will eat.' / 'She won't fail.' After 'will'/'won't'/'shall', always use the BASE form of the verb.
'Shall' is only used with I and we for offers and suggestions. WRONG: 'Shall you open the window?' / 'Shall they go?' CORRECT: 'Shall I open the window?' / 'Shall we go?' To ask someone else to do something, use 'Will you…?'
When answering a 'will' question, use 'will' or 'won't' in the short answer — never 'do/does' or 'is/are'. WRONG: 'Yes, she does.' / 'No, it isn't.' CORRECT: 'Yes, she will.' / 'No, it won't.' Also, never mix 'Yes' with 'won't' — 'Yes, I won't' is contradictory. Use 'Yes, I will' or 'No, I won't'.
Rules
- 1Use 'will' + base verb for predictions: 'It will snow tonight.' (all subjects — never add -s or -ing)
- 2Use 'will' for instant decisions made at the moment of speaking: 'I'll take the pizza, please.'
- 3Use 'will' for promises and offers: 'I'll call you later.' / 'I'll carry that for you.'
- 4Negative: won't + base verb (= will not): 'She won't eat spicy food.'
- 5Use 'Shall I / Shall we…?' for polite offers and suggestions: 'Shall we sit here?'
Practice
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