3

Assuming present tense, we can use i-adjectives in an attributive context both in the affirmative form:

高い 椅子 が あります - there's an expensive chair

And in the negative form:

高くない 椅子 が あります - there's an inexpensive chair


I know we can use na-adjectives similarly in the affirmative form:

綺麗な 人 が います - there's a pretty person

But for the life of me I can't find any info on whether using na-adjectives in the negative form is allowed in an attributive context (i.e. modifying a noun rather than as a predicative with a copula). So is the following grammatical?

綺麗じゃない 人 が います - there's a non-pretty person

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Max Shawabkeh is a new contributor to this site. Take care in asking for clarification, commenting, and answering. Check out our Code of Conduct.
5

Your guessed-at negative attributive is perfectly correct. The only caveat I'd add is that じゃ is a somewhat-informal contraction for では, and thus you should probably use the full では form in any formal spoken or written context.

綺麗[じゃ]{●}ない 人 が います
          ↓
綺麗[で]{●}[は]{●}ない 人 が います

Happy studying!

1

Although the name might scare people away, Japanesewithanime actually has a really in-depth post that covers this topic. I'll just quote the relevant part discussing why your guess was right, but there's a ton more information, so you might want to read through it.

The na of na-adjectives is actually a copula. The prenominal copula, or attributive copula.

Basically, da だ is the copula you use in an independent clause, while na な is the copula you use in an attributive clause, also called adjectival clause. A clause that describes nouns.

But there isn't a negative form of な, so you have to go back to だ.

The negative form of na-adjectives is literally just replacing the normal copula by a negative copula such as denai でない, dewanai ではない or its contraction, janai じゃない.

He includes a link talking about the difference in usage between ではない and でない

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user35327 is a new contributor to this site. Take care in asking for clarification, commenting, and answering. Check out our Code of Conduct.
  • That's a really neat article! Thanks for the link! – Max Shawabkeh Sep 12 at 5:40

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