【哪些介词后面要加ing形式】在英语语法中，介词的使用是学习者常常容易混淆的部分。特别是当介词后接动词时，是否需要使用动名词（即-ing形式）是许多学习者关心的问题。本文将总结常见的介词，并列出它们后面通常需要加-ing形式的用法，帮助读者更好地理解和掌握这一知识点。
一、常见介词后需加ing形式的总结
以下是一些常见的介词，它们后面通常接动名词（-ing形式），以表达某种动作或状态：
| 介词 | 后接动词形式 | 举例说明 |
| about | -ing | I'm thinking about going to the party. |
| after | -ing | She is interested in learning English. |
| at | -ing | He is good at playing football. |
| before | -ing | I have never seen such a thing happening. |
| by | -ing | The book was written by her writing. |
| despite | -ing | Despite not having enough money, she bought the dress. |
| during | -ing | We had a meeting during working hours. |
| for | -ing | This gift is for sending to my friend. |
| from | -ing | He is tired from working all day. |
| in | -ing | She is used to living in the city. |
| like | -ing | He looks like coming late again. |
| of | -ing | He is afraid of failing the exam. |
| on | -ing | She is proud of winning the competition. |
| to | -ing | I am looking forward to meeting you. |
| with | -ing | He is angry with not getting a reply. |
二、注意事项
1. 固定搭配：有些介词后接动词时，必须使用-ing形式，这是固定搭配，不能随意更改。例如：“look forward to”、“be used to”等。
2. 语境影响：某些情况下，即使介词后接动词，也可能使用不定式（to do），但这种情况相对较少，且多为特定语境下的用法。
3. 介词与动词的区别：注意不要将介词和动词混淆，例如“go to school”中的“to”是介词，而“want to go”中的“to”是不定式符号。
三、小结
在英语中，很多介词后面都需要接动名词（-ing形式）来构成完整的句子结构。掌握这些规则有助于提高语言表达的准确性。建议通过大量阅读和练习来加深对这些介词用法的理解，从而在实际交流中更加自如地运用。
如需进一步了解介词与其他词性的搭配，可参考相关语法书籍或在线资源进行深入学习。
