Forced to with 不得不

Structure 不得不 + Verb

不得不 (bùdébù) is a double negative meaning "have no choice but to, be forced to": 太晚了，我不得不走了 = "it got so late I had to leave". It stresses obligation under external pressure. Similar to 只好, but it focuses on the unavoidable NECESSITY.

Examples

我wǒ不bù得dé不bù承chéng认rèn他tā是shì对duì的de。
I have to admit he’s right.
没méi钱qián了le，他tā不bù得dé不bù找zhǎo工gōng作zuò。
Out of money, he was forced to find a job.
太tài晚wǎn了le，我wǒ不bù得dé不bù走zǒu了le。
It was so late I had to leave.

Levels are indicative: they follow the standard Chinese Grammar Wiki (AllSet Learning) progression, not an official HSK 3.0 mapping. We never assign levels by eye.

This point and the other 370, with audio on every example, inside Wanyu.