Godan verb (く)

吐くはく

haku

to vomit · N3

Also read はく: 履く (wear), 掃く (sweep). All 3 words

吐く (はく, haku) — to vomit — is a godan verb ending in く: 吐いて (te-form), 吐いた (past), 吐かない (negative), 吐きます (polite).

It is transitive: it takes a direct object. It also means to throw up; to spit up.

How 吐く conjugates · godan く-verb

Only the last kana changes: く becomes か, き, け or こ.

Which one depends on the ending. The five are one line of the hiragana chart — same consonant, vowels あ・い・う・え・お — and everything before that kana never changes.

か吐かないnegative

き吐きますpolite present

く吐くdictionary form

け吐けるpotential吐けばif

こ吐こうvolitional

The て and た forms · く → いて, いたい吐いてte-form吐いたpast

The て and た forms are the only two that don't follow this pattern. Every く- and ぐ-verb changes the same way there; only 行く is different.

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

PLAIN

Form	Conjugation	Audio
present N5	吐くはく haku
past N5 I threw up.	吐いたはいた haita
negative N5 I don't throw up.	吐かないはかない hakanai
te-form N5 I throw up and …	吐いてはいて haite
past negative N4 I didn't throw up.	吐かなかったはかなかった hakanakatta
volitional N4 Let's throw up.	吐こうはこう hakou
potential N3 I can throw up.	吐けるはける hakeru
cond. ば N3 If I throw up, ...	吐けばはけば hakeba
cond. たら N3 When I throw up, ...	吐いたらはいたら haitara
passive N2 Someone throws up on me.	吐かれるはかれる hakareru
causative N2 I make someone throw up.	吐かせるはかせる hakaseru
imperative N1 Throw up!	吐けはけ hake

POLITE

Form	Conjugation	Audio
present N5	吐きますはきます hakimasu
past N5 I threw up.	吐きましたはきました hakimashita
negative N5 I don't throw up.	吐きませんはきません hakimasen
past negative N4 I didn't throw up.	吐きませんでしたはきませんでした hakimasendeshita
volitional N4 Let's throw up.	吐きましょうはきましょう hakimashou

ASPECT

Form	Conjugation	Audio
ている N4 I'm throwing up.	吐いているはいている haiteiru
ていた N4 I was throwing up.	吐いていたはいていた haiteita
ています N4 I'm throwing up.	吐いていますはいています haiteimasu
ていました N4 I was throwing up.	吐いていましたはいていました haiteimashita