did后动词需用原形吗

作者：吕志强（高考志愿填报专家）
发布：2025-01-27 00:20:23 浏览：10

在探讨“did you”后面动词的形式时，咱们得明确一点：在构成一般过去时的疑问句时，“did”后面的动词得用原形。这可是英语学习中的一条铁律，就像志愿填报得遵循规则一样。

何时使用“did”

当句子中出现明显的过去时间状语，比如“yesterday”、“last week”等，且实义动词作谓语时，咱们就得注意啦！一般疑问句得加“did”，否定句则加“didn't”，并且，加了这些助动词后，原来的动词得变回原形。比如，“He went shopping yesterday.”变成疑问句就是“Did he go shopping yesterday?” 2

“did”与其他助动词

“did”和其他助动词一样，本身没意义，不能独立作谓语，只能和主要动词一起构成谓语。它主要用于构成一般过去时的否定句和疑问句，也常用于代替上文中的行为动词的过去式。 3

动词形式要注意

有的小伙伴总不注意“did”后面的动词形式。记住，在否定句和疑问句中，“did”后面的动词必须用原形。比如，“他昨天没有在家吃午饭。”正确的说法是“He didn't have lunch at home yesterday.”，而不是“He didn't had lunch at home yesterday.” 4

不能用“be”动词代替

含有行为（实义）动词的一般过去时的肯定句变成否定句或疑问句时，不能用“be”动词，必须用到“did”！比如，“They went to the park last week.”变成否定句就是“They didn't go to the park last week.”，而不是“They weren't go to the park last week.” 5

详细举例（表格形式）

原句	疑问句	否定句
He played tennis yesterday.	Did he play tennis yesterday?	He didn't play tennis yesterday.
She visited her grandparents last month.	Did she visit her grandparents last month?	She didn't visit her grandparents last month.
They watched a movie last night.	Did they watch a movie last night?	They didn't watch a movie last night.
I finished my homework last Friday.	Did I finish my homework last Friday?	I didn't finish my homework last Friday.
We went to the beach last summer.	Did we go to the beach last summer?	We didn't go to the beach last summer.