请帮我签字用英语怎么说

To sign a document in English, you can say "Please sign here" or "Can you sign here, please?" The word "sign" comes from the Latin word "signare," which means to mark or seal. Here are some example sentences:
Please sign this contract at the bottom of the page.
Can you sign this form and return it to me by tomorrow?
The judge asked the witness to sign the statement.
中文翻译：
请在页面底部签署这份合同。
你能在这张表格上签字，并在明天前交还给我吗？
法官要求证人在声明上签字。