ざるを得ない
(Zaru o e nai)
cannot help but / have no choice but to.
Connection rules
- ＋V ない-stem + ざるを得ない. Irregular: する → せざるを得ない.
- ＋Formal compulsion — 'cannot avoid doing X'.
- ＋Irregular: せざるを得ない for する.
Examples
1.
彼の意見に賛成せざるを得ない。
Kare no iken ni sansei se zaru o e nai.
I cannot help but agree with his opinion.
「cannot help but / have no choice but to」
2.
そう結論づけざるを得ない。
Sou ketsuronzuke zaru o e nai.
One cannot help but conclude so.
「cannot help but / have no choice but to」
Practice
Due to the typhoon, we have no choice but to cancel the event.
台風の影響で、イベントは___だろう。
Romaji also accepted