How to say “I didn't know.” in Japanese

In Japanese

知らなかった。

Shira nakatsu ta.

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何を飲んでるの？ Nani o non deru no?

say “What are you drink...” in Japanese

気づかなかった。 Kizuka nakatsu ta.

say “I didn't notice.” in Japanese

何を書いてるの？ Nani o kai teru no?

say “What are you writi...” in Japanese

聞いてなかった。 Kii te nakatsu ta.

say “I didn't hear that...” in Japanese

何を考えてるの？ Nani o kangae teru no?

say “What are you think...” in Japanese

そう言わなかった。 Sō iwa nakatsu ta.

say “I didn't say that.” in Japanese

何を聞いてるの？ Nani o kii teru no?

say “What are you liste...” in Japanese

そのつもりじゃなかった。 Sono tsumori ja nakatsu ta.

say “I didn't mean it.” in Japanese

何を待ってるの？ Nani o matteru no?

say “What are you waiti...” in Japanese

行かなかった。 Ika nakatsu ta.

say “I didn't go.” in Japanese

何を探してるの？ Nani o sagashi teru no?

say “What are you looki...” in Japanese

やらなかった。 Yara nakatsu ta.

say “I didn't do it.” in Japanese

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