じゃないか
(Ja nai ka)
Used to confirm something, express a discovery, or strongly state an opinion.
Connection rules
- +Noun / Adjective / Verb (Plain form) + じゃないか
- +Noun / Adjective / Verb (Plain form) + じゃん
Examples
1.
ほら、あそこに猫がいるじゃないか。

Hora, asoko ni neko ga iru ja nai ka.
Look, isn't there a cat over there?
「Spotting a stray cat」
2.
一人で全部食べたわけじゃないじゃん。

Ichi nin de zenbu tabe ta wake ja nai jan.
It's not like I ate it all by myself, you know.
「Arguing with a sibling」
Practice
See, didn't I tell you it would rain?
ほら、雨が降るって___。
Romaji also accepted