English — shall for offers and suggestions
In modern English, shall survives mainly in questions with I and we: Shall I open the window? offers to do something, and Shall we go? suggests doing it together. A more formal shall states rules and firm intentions.
How it works
Use Shall I...? to offer help or ask for instructions (Shall I carry that for you?), and Shall we...? to propose a shared action (Shall we start?). The answer is not "will": you reply Yes, please / Let's do it or No, thanks. In this use shall pairs only with I and we.
Examples
| Example | Function |
|---|---|
| Shall I open the window? | Offer to do something (I) |
| Shall I call you a taxi? | Offer help to someone |
| Shall we go for a walk? | Suggestion to do it together (we) |
| Shall we say Friday at six? | Suggesting an arrangement |
| Where shall we meet? | Asking for a joint decision |
| Tenants shall keep the premises clean. | Formal rule / obligation |
| You shall not pass. | Firm determination / prohibition |
Good to know
For plans and predictions, everyday English uses will, not shall: say I will call you later, not I shall call you later. Keep shall for offers and suggestions (Shall I...? / Shall we...?) and for formal rules; elsewhere it sounds old-fashioned.