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How to Say ‘It is (explaining something)’ in Japanese

なんです

nan desu

[nan desu]

💬 Usage Tip: [なんです] often adds an explaining or softening tone, not just plain "is." Compare [現金だけです] "it's cash only" with [現金だけなんです] "it's that it's cash only / the thing is, it's cash only."

Phrase Breakdown

なん

nan

[nan]

is; the fact is

An explanatory form often used to give a reason or background.

Example

現金だけなんです。

The thing is, it's cash only.

です

desu

[desu]

is; polite copula

A polite form of 'to be' used in formal speech.

Example

現金だけなんです。

The thing is, it's cash only.

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