<p><strong>Shall</strong> is a modal verb used in question form to&nbsp;ask for instructions or for formulating requests in a polite way.</p> <p><a href="https://open.books4languages.com/english-a2-grammar/chapter/questions-with-shall/">https://open.books4languages.com/english-a2-grammar/chapter/questions-with-shall/</a></p>