after 后面的动词用什么形态

"After" 后面的动词通常使用现在分词（-ing 形式）或不定式（to + 动词原形）。1. 现在分词（-ing 形式）：表示两个动作同时发生或紧密相关。例如： - After finishing his homework, he went to bed.2. 不定式（to + 动词原形）：表示一个动作发生在另一个动作之后。例如： - After completing the project, she will go on vacation.总结："After" 后面可接现在分词或不定式，具体取决于要表达的动作关系。

When constructing sentences with the word 'after,' it's essential to understand its grammatical role to ensure correct verb form usage. 'After' can function as both a preposition and a conjunction, which influences the verb form that follows.

As a Preposition

When 'after' is used as a preposition, it is followed by a gerund (a verb ending in -ing), forming a prepositional phrase that typically serves as an adverbial phrase of time or place within the sentence. This usage is common when describing an action that occurs subsequent to another.

As a Conjunction

Alternatively, 'after' can introduce a subordinate clause, which is a complete sentence that contains a subject and a verb. In this case, 'after' allows for a variety of tenses and voices, depending on the context and the relationship between the actions described in the main clause and the subordinate clause.

Examples in Bilingual Context

Here are some examples to illustrate the use of 'after' in both English and Chinese:

• English: After the contact with them.
  Chinese: 这回和他们接触之后。
• English: You should not go out after dark.
  Chinese: 天黑之后你就不能出门了。
• English: What did you do after that?
  Chinese: 在那之后你（们）干了什么？

These examples demonstrate how the verb form following 'after' changes based on its grammatical function in the sentence. By understanding these nuances, you can effectively use 'after' to convey the sequence of events or conditions in both English and Chinese.