How to Say ‘Didn’t understand’ in Japanese
分からなかった
wakara nakatsu ta
[wah-kah-rah nah-kaht tah]
💬 Usage Tip: Past negative of [分かる]: [分からなかった]. Polite: [分からなかったです].
🇯🇵 In Japan: Admitting you didn’t understand is totally acceptable in Japan if you phrase it gently—this is a good, non-confrontational way.
Phrase Breakdown
分から
wakara
[wah-kah-rah]
(I/they) didn’t understand (stem: “don’t understand”)
This is the verb stem used to build the negative past form: 分からない → 分からなかった (“didn’t understand”).
説明を聞いても分からなかった。
Even after listening to the explanation, I didn't understand.
なかっ
nakatsu
[nah-kaht]
not (past-negative forming part)
Part of the past-negative conjugation pattern: 〜ない → 〜なかった. Here, なかっ is the “nakat-” part of “did not.”
宿題が多くて時間がなかった。
I had a lot of homework, so I didn't have time.
た
ta
[tah]
(past tense ending)
A past-tense ending used in many forms (e.g., 〜た, 〜だった, 〜なかった). It marks that something happened/was the case in the past.
昨日、映画を見た。
Yesterday, I watched a movie.
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