Learn Japanese Grammar: Type Of Adjectives

There are two different kinds of Japanese adjectives: -i adjectives and -na adjectives. Like the verbs, the first part, or stem, of Japanese adjectives is written in kanji, and the ending, or base, which is the part that is conjugated(either -i or -na) is written in hiragana. Below I've shown how each of the two kinds of adjectives is conjugated and used in a simple sentence. The stem is in plain text and the base is in bold. I use "hana"(flower) as the subject of the sentences, but just like the verbs, you can use any subject you want and it won't change the conjugation. And again, there's way more to Japanese adjectives than just what I have here. Like the verb section, this page only covers the basic stuff ^^,,,

-I Adjectives

sample adjective: oukii = big
Present affirmative: Ano hana wa oukii desu. = That flower is big.
Present negative: Ano hana wa oukikunai desu. = That flower is not big.
Past affirmative: Ano hana wa oukikatta desu. = That flower was big.
Past negative: Ano hana wa oukikunakatta desu. = That flower was not big.
Modifying the noun: Are wa oukii hana desu. = That's a big flower.

-NA Adjectives

*to conjugate -na adjectives, you simply drop the -na ending(and conjugate "desu" the "to be" verb instead.) The only time you'll include the -na ending is when the adjective is modifying a noun.

sample adjective: kireina = pretty, clean
Present affirmative: Ano hana wa kirei desu. = That flower is pretty.
Present negative: Ano hana wa kirei dewa arimasen. = That flower is not pretty.
Past affirmative: Ano hana wa kirei deshita. = That flower was pretty.
Past negative: Ano hana wa kirei dewa arimasen deshita. = That flower was not pretty.
Modifying the noun: Are wa kireina hana desu. = That's a pretty flower.

Below you will find an useful links to learn Japanese grammar in more details. Good Luck!

Japanese Verbs
Learn Japanese Adjectives
Types Of Adjectives
List Of Japanese Adjectives
Pronouns
Learn About Nouns
Learn About Adverbs