い-adjective
しぶとい
shibutoiしぶとい (shibutoi) — tenacious — is an い-adjective: しぶとかった (past), しぶとくない (negative), しぶとくて (te-form), しぶといです (polite).
It also means tough; enduring.
How しぶとい conjugates · い-adjective
Drop the final い, then add the ending.
Every form is built on the stem しぶと. The one that isn't: the polite present, which is the whole word plus です.
しぶとい
dropsstem + ending
しぶとかったしぶとかったpast · It was tenacious.
しぶとくないしぶとくないnegative · It isn't tenacious.
しぶとくてしぶとくてte-form · It's tenacious and …
しぶとければしぶとければif
しぶといですしぶといですpolite presentkeeps the い
Every い-adjective works this way. The one exception is いい, which conjugates from its older form よい.
Aa Dimmed forms are too rare in everyday Japanese for the game to quiz.
PLAIN
| Form | Conjugation | Audio |
|---|---|---|
| present | しぶとい shibutoi | |
| past It was tenacious. | しぶとかった shibutokatta | |
| negative It isn't tenacious. | しぶとくない shibutokunai | |
| te-form It's tenacious and … | しぶとくて shibutokute | |
| past negative | しぶとくなかった shibutokunakatta | |
| cond. ば | しぶとければ shibutokereba | |
| cond. たら | しぶとかったら shibutokattara |
POLITE
| Form | Conjugation | Audio |
|---|---|---|
| present | しぶといです shibutoidesu | |
| past It was tenacious. | しぶとかったです shibutokattadesu | |
| negative It isn't tenacious. | しぶとくないです shibutokunaidesu | |
| past negative | しぶとくなかったです shibutokunakattadesu |