Grammar · な-adjectives
な-adjectives, the basic form
[な-adjective] です
These behave like nouns. They need です to make a sentence, and take な when they come before a noun.
The mistake to avoid
The な only appears before a noun. At the end of a sentence it is just です.
Examples
この町は静かです。
この まちは しずかです。
This town is quiet.
彼は親切です。
かれは しんせつです。
He is kind.