按惯常语序，疑问词通常放在问句的句首。然而，也可以后置。疑问句的后置常用于对他人说话没有听清，加以追问时。此时问句的形式常用陈述语序。疑问词的后置，也常见于英语文学作品。例如：１）“Ｈｉｓｂｒｏｔｈｅｒｉｓａｓｔｅｅｌｗｏｒｋｅｒ．”──“他兄弟是个炼钢 In the usual order, question words are usually placed at the beginning of a sentence. However, it can also be post-placed. The postposition of the interrogative sentence is often used to speak to others and is not heard and questioned. The form of the question is often used in this form. The postposition of question words is also common in English literary works. For example: 1) “Hisbrotherisasteelworker.” - "His brother is a steelmaker