ざるを得ない — No Choice But To
Expresses being forced or compelled to do something against one's will — 'cannot help but do' or 'have no choice but to do'. It conveys reluctance driven by circumstances, and belongs to formal or written registers.
Structure
[Verb ない-stem] + ざるを得ない (する → せざるを得ない)
Examples
台風のため、旅行を中止せざるを得ない。
Taifuu no tame, ryokou wo chuushi sezaru o enai.
Because of the typhoon, we have no choice but to cancel the trip.
する verb 中止する becomes the irregular 中止せざるを得ない, showing forced cancellation.
上司の命令なら、従わざるを得ない。
Joushi no meirei nara, shitagawazaru o enai.
If it's the boss's order, I have no choice but to obey.
Verb ない-stem 従わ + ざるを得ない expresses reluctant compliance.
証拠を見せられては、認めざるを得なかった。
Shouko wo miserarete wa, mitomezaru o enakatta.
Once shown the evidence, I had no choice but to admit it.
認め + ざるを得なかった (past) shows the forced admission under the circumstances.
• Formation trap: する becomes せざるを得ない, NOT しざるを得ない. • Register: formal, common in writing, news, and stiff speech. • 得ない is read えない here, not うない.
Commonly confused with
The JLPT rarely asks whether you recognise a pattern — it asks which of several similar patterns fits. These are the ones ざるを得ない is tested against.
vs なければならない
なければならない is a neutral 'must' (obligation/rule), while ざるを得ない stresses reluctant compulsion by external circumstances.
vs しかない
しかない ('no option but') is more colloquial and can follow nouns/verbs plainly; ざるを得ない is formal and attaches to the verb ない-stem.
More modal expressions
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