おれたち は びんぼうじゃない。
oretachi wa binbou ja nai.
We ain’t poor.

The Lowdown on “Ain’t”
So, what’s the deal with ~くない (kunai) and ~じゃない (ja nai)? Think of it like this: in the world of Japanese adjectives, you got two crews. You got the i-adjectives, the OGs of the scene. Then you got the na-adjectives, the new jacks. You can’t treat ’em the same, ya dig?
~くない (kunai) is what you use to flip an i-adjective negative. It’s like puttin’ a “not” or an “ain’t” on it. So if something is たかい (takai) – high or expensive, like the price of a brick goin’ up – and you wanna say it ain’t expensive, you hit it with the kunai to make it たかくない (takakunai).
~じゃない (ja nai) is for the na-adjectives. These guys are a little different. They roll with な (na) when they’re modifyin’ nouns, but when you wanna say somethin’ ain’t, you drop that な (na), add the noun it’s describing, and then slap じゃない (ja nai) on the end. So if a job is かんたん – easy – and it turns out to be a setup, you say that job はかんたんじゃない (wa kantan ja nai). It ain’t easy. It’s all about knowin’ which crew you’re dealin’ with.

Here’s the cheat sheet. Don’t get caught slippin’.
| Adjective Type | Plain Form | Negative Form | Example | English Translation |
| i-adjective | あたらしい (atarashii) | あたらしくない (atarashiku nai) | そのくるまはあたらしくない。 | That car ain’t new. |
| na-adjective | ゆうめい (yuumei) | ゆうめいじゃない (yuumei ja nai) | そのギャングはゆうめいじゃない。 | That gang ain’t famous. |
For the i-adjectives, you just gotta chop off that final い (i) at the end and replace it with くない (kunai). It’s like takin’ the safety off. Simple. So, おもしろい (omoshiroi) becomes おもしろくない (omoshirokunai). Boom. The movie ain’t interesting.
For the na-adjectives, you keep the word as is and just add じゃない (ja nai) after it. Don’t even think about touchin’ the adjective itself. If the boss is しんせつ (shinsetsu) (kind), but you know he’s a snake, you say he’s しんせつじゃない (shinsetsu ja nai). Easy peasy.

Think of it like the Five Families in New York. You got the i-adjective family and the na-adjective family. They both run this city, but they got different rules, different ways of doin’ things.
The i-adjective family is old school. They got traditions. To make a negative, you gotta get your hands dirty and change the word itself—you cut the い (i) and add くない (kunai). It’s an internal affair, a family matter.
The na-adjective family is more like a modern crew. They’re flexible. To make a negative, they just bring in an outsider, this じゃない (ja nai) guy, to do the job. They don’t change who they are. They just say, “Yo, this situation? It ain’t it.”
You wouldn’t use a Corleone tactic on a Soprano crew, right? Same thing here. Know your family, know the rules.

Here’s some new vocabulary you’ll need to know to run these streets.
けいむしょ (Keimusho)
English: Prison; jail; the joint.
Aight, listen up. Keimusho, that’s the pen, the slammer, the big house. It’s where the system sends you when you get caught slippin’. We ain’t talkin’ ’bout no vacation. This is where you do hard time, locked down, away from your crew and the block. It’s all about survival in there, stayin’ sharp and not gettin’ played. You go in, you pay your debt, and you hope you come out wiser, not weaker. It’s the belly of the beast, for real.
じょうほう (Jouhou)
English: Information; intel; the scoop.
Yo, check it. Jōhō is the lowdown, the 4-1-1. This ain’t just what you hear on the news; this is the word on the street. It’s the intel that lets you know who’s makin’ moves, who’s a snake, and where the next come-up is. Without good jōhō, you’re flyin’ blind, ya dig? It’s the most valuable currency out here. You gotta protect your sources and know how to read between the lines, ’cause the right piece of info can make you or break you. That’s real talk.
けいかく (Keikaku)
English: Plan; scheme; plot.
A keikaku, that’s your master plan, your blueprint for the hustle. You can’t just be out here wingin’ it. You gotta have a strategy, a plot for how you gonna get that paper and stay one step ahead of the game. Every move gotta be calculated, every piece in the right place. Think of it like a heist movie, son. The crew sits down, they map it all out, from the entry to the getaway. A solid keikaku is the difference between gettin’ rich and gettin’ pinched.
この へん (Kono Hen)
English: ‘Round here; this area; this neighborhood.
“Kono hen,” that’s my turf, my block, my hood. This is the spot where I run things, where my crew holds it down. It ain’t just some random place on a map; it’s our territory. We know every back alley, every corner store, who belongs and who’s an outsider. You step into “kono hen,” you better come correct and show some respect, you feel me? This is home base, the heart of the operation.
べんごし (Bengoshi)
English: Lawyer; attorney; mouthpiece.
When the heat is on and the feds are knockin’ at your door, a bengoshi is your mouthpiece, your legal eagle. This ain’t just any suit; this is the cat who knows the system inside and out, the one who can find the loopholes and talk that legal jive to get you off the hook. He’s your shield in the courtroom, the one who fights your case when you’re backed into a corner. A good bengoshi is worth his weight in gold, ’cause when you’re facin’ serious time, he’s the only one who can save your skin. Straight up.

Peep these lines. This is how you talk when you’re makin’ moves.
この しごと は あぶなくない。
kono shigoto wa abunakunai.
This job ain’t dangerous.
あの おとこ は やさしくない。
ano otoko wa yasashikunai
That dude ain’t kind.
その はなし は おもしろくない。
sono hanashi wa omoshirokunai.
That story ain’t interesting.
おれ の べんごし は たかくない。
ore no bengoshi wa takakunai.
My lawyer ain’t expensive.
この へん は あんぜんじゃない。
kono hen wa anzen ja nai.
This neighborhood ain’t safe.
かれ の けいかく は かんぜんじゃない。
kare no keikaku wa kanzen ja nai.
His plan ain’t perfect.
その じょうほう は あたらしくない。
sono jouhou wa atarashikunai.
That information ain’t new.
けいむしょ の しょくじ は おいしくない。
keimusho no shokuji wa oishikunai.
The food in prison ain’t delicious.
かれ は ゆうめいじゃない。
kare wa yuumei ja nai.
He ain’t famous.
けいさつ は しんせつじゃない。
keisatsu wa shinsetsu ja nai.
The cops ain’t kind.
A’ight, that’s the lesson for today. Study up. Don’t be a clown. Go out there and make your sensei proud.
Word is bond. Peace out.


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