Japanese grammar

What does ~んだって mean? Japanese grammar N3

~んだって means I hear that…; they say that… (casual hearsay).

Quick facts
Level (estimated, JLPT framework)N3
Structureplain form + んだって
N/な形 + な + んだって
Romajindatte
MeaningI hear that…; they say that… (casual hearsay)

Forming it

Noun休み → 休みなんだって
Verb行く → 行くんだって

How to use it

Conveys news one has heard, casual tone. Rising intonation at the end turns it into a confirming question.

  • 「んだって」 = I hear that…: 「彼、来月結婚するんだって」. It's a shortened form of 「~のだと言っていた」.
  • Nouns and na-adjectives need 「な」: 「明日は休みなんだって」.
  • Rising intonation at the end turns it into a question: 「合格したんだって?」 (I hear you passed?). In formal speech, use 「~そうです/~とのことです」.

Examples

  • I hear he is moving to Tokyo next month.

  • They say tomorrow is a day off. Did you know?

Keep in mind

  • Nouns and な-adjectives need 「な」.
  • Colloquial — not used in reports.

Common mistakes

  • Wrong明日(あした)は休(やす)みだんだって。

    I hear tomorrow is a day off.

    Correct明日(あした)は休(やす)みなんだって。

    A noun connects through 「な」, not 「だ」.

  • Wrong(会議(かいぎ)で)売上(うりあげ)が下(さ)がったんだって。

    It is reported that sales have declined.

    Correct(会議(かいぎ)で)売上(うりあげ)が下(さ)がったとのことです。

    In a meeting you must use the formal reported form.

Exam tips

  • 「んだって」 = I hear (colloquial); Noun/na-adjective needs 「な」.

Related patterns

All N3 grammar →