In Japanese, the verb 知る (meaning "to to know / find out", JLPT N5) conjugates in the Past Negative Polite form as 知りませんでした (shirimasendeshita). Verb group: Group 1.
Context Example
ニュースを知りませんでした。
Nyuusu o shirimasendeshita.
I did not know the news.
What is the Past Negative Polite conjugation of 知る (shiru)?
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