AI加词

have to

hæv tuː

核心义 AI

不得不；必须（因客观原因）

释义 AI

phrase.
  1. 1不得不，必须（因规则、义务或客观情况）
    used to say that something is necessary or that you must do something
    I have to go now.
    我现在得走了。
  2. 2只好，只得（表示别无选择）
    used to say that there is no other choice
    We had to wait for the bus.
    我们只好等公交车。

例句 AI

I have to finish my homework before dinner.
我必须在晚饭前完成作业。基础
She has to wear a uniform at school.
她在学校必须穿校服。基础
Do you have to leave so early?
你非得这么早走吗？自然
We had to cancel the trip because of the storm.
因为暴风雨，我们不得不取消旅行。自然
If you want to pass the exam, you will have to study harder.
如果你想通过考试，就必须更加努力学习。场景

搭配 AI

have to do sth不得不做某事
don't have to do sth不必做某事
will have to将不得不
had to（过去）不得不
have got to（口语）必须

短语与习语 AI

have to do with与……有关
if you have to如果你非要（这么做）
you have to hand it to sb你不得不佩服某人

句型 AI

have to + verb
不得不做某事
I have to study for the test.
我必须为考试学习。
don't have to + verb
不必做某事
You don't have to come if you're busy.
如果你忙，就不必来了。
had to + verb
（过去）不得不做某事
She had to work late yesterday.
她昨天不得不加班。

语域与场景 AI

中性，口语和书面语都常用。表示因客观原因而必须做某事，比 must 更常用。否定式 don't have to 表示“不必”，与 mustn't（禁止）不同。英美用法无差别。

近义词辨析 AI

must更正式、主观，强调必要性；have to 更客观
need to强调需要，语气比 have to 弱一些
be obliged to正式，表示受义务或法律约束

反义词 AI

don't have to表示“不必”，是 have to 的否定形式
be free to表示“可以自由地做”，与被迫相反

易混词 AI

mustn't表示“禁止”，而 don't have to 表示“不必”，意思完全不同
have got to口语中常省略 have，说成 got to，但正式写作中不常用

常见错误 AI

✕ I have to go to school yesterday.
✓ I had to go to school yesterday.
过去时间要用 had to，不能用 have to。
✕ You don't have to smoke here.
✓ You mustn't smoke here.
don't have to 表示“不必”，禁止应用 mustn't。

助记 AI

have（有）+ to（不定式标记）：有事情要做，所以“不得不”。

词频与标签

当代语料词频—
BNC 词频—
柯林斯星级—
牛津 3000核心词
考试大纲—

词频排名越小越常用；柯林斯 5 星最常用。数据来自 ECDICT 词典，短语没有词频排名。

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常用短语

词条资料由 DeepSeek 生成，词典数据来自 ECDICT，仅供参考。发现错误？登录后可以反馈。