happen的用法是什么
“Happen”是一个常见的动词,表示“发生、出现”。以下是其常见用法总结:
| 用法 | 结构 | 例句 |
| 一般现在时 | happen | What happened last night? |
| 过去时 | happened | The accident happened yesterday. |
| 现在完成时 | have/has happened | The meeting has already happened. |
| 被动语态 | be happened | The event was happened unexpectedly. |
注意:“Happen”通常不用于被动语态,更常用主动结构。此外,它常与“to”连用,如“something happens to someone”。
总之,“happen”主要用于描述事件的发生,强调偶然性或不可控性。使用时需注意时态和语态的搭配。
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