な-adjective
丈夫じょうぶ
joubu丈夫 (じょうぶ, joubu) — healthy — is a な-adjective: 丈夫だった (past), 丈夫じゃない (negative), 丈夫で (te-form), 丈夫です (polite).
It also means robust; strong.
How 丈夫 conjugates · な-adjective
Nothing drops: the ending attaches to the whole word.
A な-adjective is a noun-like word plus a copula, and the copula is what conjugates.
丈夫
whole word + ending
丈夫だった丈夫だったpast · It was sturdy.
丈夫じゃない丈夫じゃないnegative · It isn't sturdy.
丈夫で丈夫でte-form · It's sturdy and …
丈夫なら丈夫ならif · If it's sturdy, ...
丈夫です丈夫ですpolite present · It's sturdy.
Before a noun it takes な, which is what names the class.
N5 N tags give the JLPT level at which the game starts quizzing a form.
PLAIN
| Form | Conjugation | Audio |
|---|---|---|
| present N5 It's sturdy. | 丈夫だ じょうぶだ joubuda | |
| past N5 It was sturdy. | 丈夫だった じょうぶだった joubudatta | |
| negative N5 It isn't sturdy. | 丈夫じゃない じょうぶじゃない joubujanai | |
| te-form N5 It's sturdy and … | 丈夫で じょうぶで joubude | |
| past negative N4 It wasn't sturdy. | 丈夫じゃなかった じょうぶじゃなかった joubujanakatta | |
| cond. なら N3 If it's sturdy, ... | 丈夫なら じょうぶなら joubunara | |
| cond. たら N3 When it's sturdy, ... | 丈夫だったら じょうぶだったら joubudattara |
POLITE
| Form | Conjugation | Audio |
|---|---|---|
| present N5 It's sturdy. | 丈夫です じょうぶです joubudesu | |
| past N5 It was sturdy. | 丈夫でした じょうぶでした joubudeshita | |
| negative N5 It isn't sturdy. | 丈夫じゃないです じょうぶじゃないです joubujanaidesu | |
| past negative N4 It wasn't sturdy. | 丈夫じゃなかったです じょうぶじゃなかったです joubujanakattadesu |