〜ないといけない must, have to
Core meaning - must, have to
Form - Verb (ない-form) + といけない
Usage - Focus on the highlighted segment in each example; surrounding words can change while the pattern function stays the same.
Use this pattern for its grammatical function, not as a literal word-by-word translation.
See examples below for varied real-world usage.
Pattern scope
- Use this pattern as a grammar frame: Verb (ない-form) + といけない.
Do not overextend meaning
- The highlighted form shows the grammar point; other words in the sentence can vary.
Check register and context
- Prefer natural context, and avoid translating word-by-word from English.
I have to do my homework.
In everyday context, I have to do my homework.
In real communication, I have to do my homework.
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