In Japanese, the verb 調べる (meaning "to to investigate / look up / check", JLPT N3) conjugates in the Past Polite form as 調べました (shirabemashita). Verb group: Group 2.
Context Example
調べました。
Shirabemashita.
I investigated.
What is the Past Polite conjugation of 調べる (shiraberu)?
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