The adjective 十分 (meaning "sufficient/enough", JLPT N3) conjugates in the Past Negative Polite form as 十分じゃなかったです (juubun janakatta desu). Adjective type: na-adjective.
Context Example
時間は十分じゃなかったです。
Jikan wa juubun janakatta desu.
The time was not sufficient.
What is the Past Negative Polite conjugation of 十分 (juubun)?
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