Translation guide
Expresses that one has no choice but to do something, or that a certain action or feeling is inevitable. In Japanese, this is conveyed through set grammatical patterns rather than a single word.
The speaker feels compelled to take an action, often reluctantly, because there is no other option.
A formal pattern meaning 'cannot help but do' or 'have no choice but to do'. Used with the negative form of the verb (ない-stem). Often implies reluctance or external pressure.
彼の意見に反対せざるを得ない。
I cannot but oppose his opinion.
Due to bad weather, we had no choice but to cancel the game.
Means 'cannot not do' or 'must do' due to social obligation, duty, or common sense. Stronger sense of obligation than ～ざるを得ない.
上司に頼まれたので、やらないわけにはいかない。
Since my boss asked me, I cannot but do it.
友達の結婚式だから、行かないわけにはいかない。
It's my friend's wedding, so I cannot but go.
A casual pattern meaning 'there is nothing but to do' or 'have no choice but to do'. Used with the dictionary form of the verb. Emphasizes the lack of alternatives.
バスがないから、歩くしかない。
There's no bus, so I cannot but walk.
誰も手伝ってくれないので、自分でやるしかない。
No one will help, so I have no choice but to do it myself.
A slightly more formal or literary version of ～しかない, meaning 'there is no other way but to do'. Often used in writing.
こうなったら、最後まで戦うよりほかない。
Now that it's come to this, we cannot but fight to the end.
The speaker experiences an involuntary emotional or physical reaction, or does something without intending to.
Means 'cannot help doing' or 'cannot resist doing'. Expresses an uncontrollable urge or feeling. Used with the negative stem (ない-stem) of the verb.
その話を聞いて、笑わずにはいられなかった。
Hearing that story, I couldn't but laugh.
彼女の歌を聞くと、感動せずにはいられない。
When I hear her sing, I cannot but be moved.
Similar to ～ずにはいられない, but slightly more colloquial. Also means 'cannot help doing'.
怖い映画を見ると、叫ばないではいられない。
When I watch a scary movie, I cannot but scream.
While primarily meaning 'to do completely' or 'to end up doing', it often implies an unintended or regrettable action, similar to 'cannot but do' in certain contexts. Often used with つい.
つい食べ過ぎてしまった。
I couldn't but overeat (I ended up overeating without meaning to).
Expresses that a situation is unavoidable or a natural consequence.
Means 'it's no wonder that' or 'it's only natural that'. Used to say that a reaction or outcome is inevitable given the circumstances.
彼が怒るのも無理はない。
It cannot be helped that he gets angry (He cannot but get angry).
Means 'it is natural that' or 'it is to be expected that'. Similar to ～のも無理はない but more direct.
あんなに練習したのだから、勝って当然だ。
Since they practiced that much, they cannot but win (it's only natural they win).
～ざるを得ない emphasizes that the action is unavoidable due to external circumstances, often reluctantly. ～ないわけにはいかない emphasizes a social or moral obligation that makes not doing the action impossible.
雨で試合が中止になれば、帰らざるを得ない。
If the game is canceled due to rain, we have no choice but to go home. (external factor)
友達が困っているなら、助けないわけにはいかない。
If a friend is in trouble, I cannot but help. (moral obligation)
There is no single Japanese word for 'cannot but do'. Using a direct translation like できないがする is incorrect. Always use the appropriate grammatical pattern based on the nuance you want to convey.
There is no single Japanese word for 'cannot but do'. Using a direct translation like できないがする is incorrect. Always use the appropriate grammatical pattern based on the nuance you want to convey.