Katsuyo

い-adjective

賢いかしこい

kashikoi

wise · N3

賢い (かしこい, kashikoi) — wise — is an -adjective: 賢かった (past), 賢くない (negative), 賢くて (te-form), 賢いです (polite).

It also means clever; smart.

How 賢い conjugates · -adjective

Drop the final , then add the ending.

Every form is built on the stem . The one that isn't: the polite present, which is the whole word plus です.

dropsstem + ending
かったかったpast · It was smart. くないくないnegative · It isn't smart. くてくてte-form · It's smart and … ければければif · If it's smart, ... 賢いです賢いですpolite presentkeeps the い

Every -adjective works this way. The one exception is いい, which conjugates from its older form よい.

N5 N tags give the JLPT level at which the game starts quizzing a form.

PLAIN

FormConjugationAudio
present N5 賢い かしこい kashikoi
past N5 It was smart. 賢かった かしこかった kashikokatta
negative N5 It isn't smart. 賢くない かしこくない kashikokunai
te-form N5 It's smart and … 賢くて かしこくて kashikokute
past negative N4 It wasn't smart. 賢くなかった かしこくなかった kashikokunakatta
cond. ば N3 If it's smart, ... 賢ければ かしこければ kashikokereba
cond. たら N3 If it turns out smart, ... 賢かったら かしこかったら kashikokattara

POLITE

FormConjugationAudio
present N5 賢いです かしこいです kashikoidesu
past N5 It was smart. 賢かったです かしこかったです kashikokattadesu
negative N5 It isn't smart. 賢くないです かしこくないです kashikokunaidesu
past negative N4 It wasn't smart. 賢くなかったです かしこくなかったです kashikokunakattadesu