The following sentence was part of the last exercise I did:

あなたが何を見つけようと、それは途方もなく危険なもの_____。大勢の人間が私達を殺そうとしてるんだから。 A

A. に間違いない、B. に越したことはない、C. に相違ない、D. に決まっている

The right answer was D.

The thing is, I have trouble understanding the meaning of this sentence. I think I understand most of it though:


That's because a lot of people are trying to kill us.


This (is?) something incredibly dangerous

Then I'm a bit stuck. I feel like the key to understanding this sentence is that "あなたが何を見つけようと、" without any follow-up. I think I remember learning something like the "思う" or "する" that usually comes after the volitional form + と can be omitted. However, I cannot wrap my head around this part.

How should I parse this sentence? And what's the meaning of it once "に決まっている" has been inserted?

  • japanesetest4you.com/flashcard/… Maybe this website will help you translate it yourself. It is always better to try to understand it by yourself
    – KawaUso
    Commented Jul 23, 2019 at 0:40
  • 2
    The exercise question seems kind of defective even I think I get the surface meaning. I have no idea what "途方もなく危険なもの" is in that context so I can't decide what modality I should use. Aside from the textbook grammar (I presume), I don't think D is the only answer whenever you see that sentence. Commented Jul 23, 2019 at 3:14

1 Answer 1


I feel this is a difficult question even to some native speakers... The meaning of the first sentence is "No matter what you are going to find (e.g., in this dungeon), it must be something incredibly dangerous." For this ようと, see: What are the grammar rules behind this clause, 「才能があろうがなかろうが」? and Meaning of volitional passive form

So, you are supposed to choose the correct expression that corresponds to this "must be". B ("nothing is better than a dangerous thing") is clearly wrong. A and C are close, but these are usually used in the context where you are identifying something/someone with a concrete evidence. ~に決まっている (or ~に違いない, without 間) expresses a strong suspicion, which is better in this context because the speaker knows almost nothing about what they are going to find.

太郎に間違いない。 = 太郎に相違ない。
[seeing a photograph / collating a fingerprint] It must be Taro.

太郎に違いない。 = 太郎に決まっている。
["Who ate the cake?"] It must be Taro.

  • Ah, so 何を見つけようと simply means 何を見つけても?
    – Right leg
    Commented Jul 23, 2019 at 6:48
  • @Rightleg Yes, that's correct!
    – naruto
    Commented Jul 23, 2019 at 6:51

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