Ichidan verb

茹でるゆでる

yuderu

to boil (something in hot water) · N2

茹でる (ゆでる, yuderu) — to boil — is an ichidan verb: 茹でて (te-form), 茹でた (past), 茹でない (negative), 茹でます (polite).

It is transitive: it takes a direct object.

How 茹でる conjugates · ichidan verb

Drop the る, then add the ending.

Nothing else moves: every ending attaches straight to the stem 茹で. That is what makes ichidan the easy class.

茹でる dropsstem + ending

茹でない茹でないnegative · I don't boil it. 茹でます茹でますpolite present 茹でて茹でてte-form · I boil it and … 茹でた茹でたpast · I boiled it. 茹でられる茹でられるpotential · I can boil it. 茹でれば茹でればif · If I boil it, ... 茹でよう茹でようvolitional · Let's boil it.

No sound changes and no vowel rows. The catch is telling ichidan from godan: plenty of godan verbs end in る too.

N1 N tags give the JLPT level at which the game starts quizzing a form.

Aa Dimmed forms are too rare in everyday Japanese for the game to quiz.

PLAIN

Form	Conjugation	Audio
present	茹でるゆでる yuderu
past I boiled it.	茹でたゆでた yudeta
negative I don't boil it.	茹でないゆでない yudenai
te-form I boil it and …	茹でてゆでて yudete
past negative	茹でなかったゆでなかった yudenakatta
volitional Let's boil it.	茹でようゆでよう yudeyou
potential I can boil it.	茹でられるゆでられる yuderareru
cond. ば If I boil it, ...	茹でればゆでれば yudereba
cond. たら When I boil it, ...	茹でたらゆでたら yudetara
passive It gets boiled.	茹でられるゆでられる yuderareru
causative	茹でさせるゆでさせる yudesaseru
imperative N1	茹でろゆでろ yudero

POLITE

Form	Conjugation	Audio
present	茹でますゆでます yudemasu
past I boiled it.	茹でましたゆでました yudemashita
negative I don't boil it.	茹でませんゆでません yudemasen
past negative	茹でませんでしたゆでませんでした yudemasendeshita
volitional Let's boil it.	茹でましょうゆでましょう yudemashou

ASPECT

Form	Conjugation	Audio
ている I'm boiling something.	茹でているゆでている yudeteiru
ていた I was boiling something.	茹でていたゆでていた yudeteita
ています I'm boiling something.	茹でていますゆでています yudeteimasu
ていました I was boiling something.	茹でていましたゆでていました yudeteimashita