The adjective 簡単 (meaning "easy/simple", JLPT N5) conjugates in the Past Negative Polite form as 簡単じゃなかったです (kantan janakatta desu). Adjective type: na-adjective.
Context Example
料理は簡単じゃなかったです。
Ryouri wa kantan janakatta desu.
Cooking was not simple.
What is the Past Negative Polite conjugation of 簡単 (kantan)?
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