Impossibility Despite Desire (~you ni mo...nai)

1. 1[Volitional Form]: This expresses the initiation of a willed action. It's more than just a desire (~たい); it's the intent or attempt to act. When you say 帰ろう, you are signaling "I'm going to go home" or "Let's go home." In this pattern, it establishes the action you are trying to set in motion.

1. 1にも Particle: Here, にも is a concessive particle that attaches to the volitional form. It means "even when one attempts to..." or "despite the attempt to...". It focuses on the specific effort being made. This is why the pattern feels so immediate; it's about a present, blocked attempt, not a general wish. The に highlights the purpose or direction of the will, and the も adds the "even" or "also" sense of concession.

1. 1[Potential Negative Form]: This delivers the outcome of inability. Crucially, the potential form specifies that the inability is due to a lack of capability, not a lack of will. This is the core of the pattern. 食べない means you won't eat (a choice), whereas 食べられない means you can't eat (a constraint). By using the potential negative, you clarify that the failure to act is beyond your control.

• vs. ~たくても~ない: This is the most common alternative. 会(あ)いたい focuses on the feeling of wanting to meet. 会(あ)おう focuses on the intention or attempt to meet. Therefore, 会(あ)いたくても会(あ)えない conveys wistful regret ("I want to see them, but I can't"). 会(あ)おうにも会(あ)えない implies you made a plan or effort, but a specific obstacle (e.g., a train cancellation, a sudden lockdown) is preventing it.

• vs. ~かねる: This is a formal, indirect way to say "I am not in a position to..." or "I find it difficult to...". It is almost exclusively used in business or customer service to refuse politely. お答(こた)えしかねます ("I am unable to answer") is a standard polite refusal. It softens the "no." ~(よ)うにも~ない is a more direct, factual statement about an insurmountable barrier and is not inherently a refusal pattern.

• vs. ~がたい: This expresses that something is difficult to do on a psychological or moral level, not that it's physically impossible. 信(しん)じがたい話(はなし) is a "story that is hard to believe." You could technically choose to believe it, but it resists belief. 忘(わす)れようにも忘(わす)れられない記憶(きおく) is a "memory I cannot forget, even if I try." The barrier is absolute; forgetting is not an option.

• Q: Can I use this pattern in the past tense?

Yes. The tense is typically applied to the second verb or the final verb of the sentence. For example: 当時は帰りたくても帰れなかった (Back then, I wanted to go home but couldn't) becomes 帰(かえ)ろうにも帰(かえ)れなかった to add the nuance of a thwarted attempt.

• Q: Is ~(よ)うにも~ない too dramatic for everyday conversation?

It has more weight than ~たくても~ない. Using it for a small issue can make you sound dramatic, but for genuinely frustrating modern problems (a dead phone battery, a frozen computer, a missed last train), it's perfectly natural and common.

• Q: How does politeness work with this pattern?

The pattern itself is neutral. Politeness is determined by the sentence ending. ~できない is plain form, while ~できません is the polite form. You can use it in formal settings by ensuring the ending is polite: 説明(せつめい)しようにも説明(せつめい)できません。

• Q: What if the verb is a Noun + する compound?

The pattern works perfectly. You conjugate する. For example, with 勉強(べんきょう)する (to study), it becomes 勉強(べんきょう)しようにもできない. With na-adjectives, you often use ~になろうにもなれない (even if I try to become X, I can't): 元気(げんき)になろうにもなれない (can't get energetic even if I try).

• Q: Is the second verb ever different from the first?

In standard, correct Japanese, no. The power of the pattern lies in the direct [verb A]...[verb A] contradiction. While you might encounter creative exceptions where the second part is a phrase like どうしようもない (there's nothing that can be done), learners should strictly adhere to repeating the verb to ensure grammatical correctness and clarity.