じゃない ⇒ ちゃう

About じゃない ⇒ ちゃう

The negative form of the auxiliary verb だ in Japanese frequently appears as じゃない (an abbreviation of ではない). In 関西弁(かんさいべん) じゃない is often replaced by ちゃう. ちゃう itself is actually just an abbreviation of 違(ちが)う, a common うverb meaning 'to differ'.

ちゃう may be used directly after either nouns, or な-Adjectives, to convey 'is not (A)'.

ちゃう may also appear in the past negative form. However, as it is a set expression (and not considered an actual conjugation of 違(ちが)う), it will not be conjugated like a regular う - Verb, but will become ちゃうかった.

Fun Fact

じゃない may also be replaced with やない. やない being the 関西弁(かんさいべん) equivalent of だ, with the い-Adjective ない attached to it. Like ちゃう, やない is used after nouns, or な-Adjectives.

あれ、ミオちゃんやない？

Hey, isn't that Mio chan?
見(み)て見(み)て、これ50%オフやった、お得(とく)やない？

Look look, this was 50% off, don't you think that's a good deal?

When conjugating in the past negative form, やない follows the regular conjugation rules of ない, becoming やなかった.

あの人(ひと)はさんまさんやなかった。ただのおっちゃんやった。

That person wasn't Sanma-san. It was just a middle aged guy.
便利(べんり)そうだったから買(か)ったのに、全然(ぜんぜん)便利(べんり)やなかった。

I bought this because it looked useful, but it was not useful at all.

Examples

--:--

私(わたし)は犬(いぬ)が好(す)きじゃない。
私(わたし)は犬(いぬ)が好(す)きちゃう。

I do not like dogs.

私(わたし)は寿司(すし) が好(す)きじゃないので、食(た)べない。
私(わたし)は寿司(すし) が好(す)きちゃうので、食(た)べへん。

I do not like sushi, so I don't eat it.

りんごじゃない。
りんごちゃう。

It is not an apple.

難(むずか)しくなるんじゃない？
難(むずか)しくなるんちゃう？

It will probably get hard, won't it?

その帽子(ぼうし)は娘(むすめ)の帽子(ぼうし)じゃない。
その帽子(ぼうし)は娘(むすめ)の帽子(ぼうし)ちゃう。

That hat is not my daughter's hat.

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