Katsuyo

い-adjective

弱いよわい

yowai

weak · N5

弱い (よわい, yowai) — weak — is an -adjective: 弱かった (past), 弱くない (negative), 弱くて (te-form), 弱いです (polite).

It also means frail; delicate.

How 弱い 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 weak. くないくないnegative · It isn't weak. くてくてte-form · It's weak and … ければければif · If it's weak, ... 弱いです弱いです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 弱い よわい yowai
past N5 It was weak. 弱かった よわかった yowakatta
negative N5 It isn't weak. 弱くない よわくない yowakunai
te-form N5 It's weak and … 弱くて よわくて yowakute
past negative N4 It wasn't weak. 弱くなかった よわくなかった yowakunakatta
cond. ば N3 If it's weak, ... 弱ければ よわければ yowakereba
cond. たら N3 When it's weak, ... 弱かったら よわかったら yowakattara

POLITE

FormConjugationAudio
present N5 弱いです よわいです yowaidesu
past N5 It was weak. 弱かったです よわかったです yowakattadesu
negative N5 It isn't weak. 弱くないです よわくないです yowakunaidesu
past negative N4 It wasn't weak. 弱くなかったです よわくなかったです yowakunakattadesu