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Conjugating な-Adjectives

Conjugating な-Adjectives

な-adjectives are conjugated into the past tense form by simply using the stem words themselves and adding the appropriate conjugation of です immediately afterwards.

Example(s):

元気でした – was energetic
賑やかじゃない – not lively
綺麗じゃなかった – was not pretty

Connecting な-Adjectives:
When two or more な-adjectives are used together to describe the same entity, it is only the finally listed adjective that is conjugated according to usage; all prior adjectives are conjugated into the て Form, which is derived by adding で at the end of the な-adjective’s stem.

Example(s):

効率的で効果的 – efficient and effective
便利で早い – convenient and fast

When we mean to connect な-adjectives that are in their negative conjugation, we use the じゃなくて/ではなくて conjugation of です at the end of all な-adjectives except the last appearing, which is conjugated regularly.

Example(s):

親切じゃなくて同情的じゃなかった – was not kind and not sympathetic

*Notice that we can connect い-adjectives and な-adjectives interchangeably by adhering to their respective guidelines of conjugation.

Example(s):

賑やかじゃなくて楽しくなかった – was not lively and was not fun
*This can be a tricky construct to grasp as there is another grammatical construct, X(ではなくて/じゃなくて)Y which translates to “not X, but Y” and practically has the opposite meaning as the form we see presented here.