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Adjective Conjugation - Negative Polite

Conjugating いい (ii) in Negative Polite

The adjective いい (meaning "good", JLPT N5) conjugates in the Negative Polite form as よくないです (yokunai desu). Adjective type: i-adjective.

Context Example

天気がよくないです。
Tenki ga yokunai desu.
The weather is not good.
What is the Negative Polite conjugation of いい (ii)?
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Try again! Hint: the answer starts with "よく" or type "yokunai desu" in romaji.