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Japanese verb疑う (utagau) Conjugation
疑う (utagau) means “to doubt, to distrust, to be suspicious of”. It is a う-verb (godan) verb. It is an う-verb (godan): the last sound changes, 疑わない and 疑います, and the te-form is 疑って. Below is its conjugation in all 14 forms, plain and polite, the same forms the Japanese verb conjugation worksheets print in their answer keys.
- Meaning
- to doubt, to distrust, to be suspicious of
- Type
- う-verb (godan)
- Dictionary form
- 疑う
- Reading
- うたがう
- Romaji
- utagau
- Masu form
- 疑います
- Nai form
- 疑わない
- Te-form
- 疑って
- Ta form
- 疑った
Basic forms
Present現在形・辞書形
| Plain | 疑う |
|---|---|
| Plain negative | 疑わない |
| Polite | 疑います |
| Polite negative | 疑いません |
Past過去形・た形
| Plain | 疑った |
|---|---|
| Plain negative | 疑わなかった |
| Polite | 疑いました |
| Polite negative | 疑いませんでした |
Te-formて形
| Plain | 疑って |
|---|---|
| Plain negative | 疑わないで |
Progressive (-te iru)ている
| Plain | 疑っている |
|---|---|
| Plain negative | 疑っていない |
| Polite | 疑っています |
| Polite negative | 疑っていません |
Wanting, inviting, telling
Want to (-tai)たい形
| Plain | 疑いたい |
|---|---|
| Plain negative | 疑いたくない |
| Polite | 疑いたいです |
| Polite negative | 疑いたくないです |
Volitional意向形
| Plain | 疑おう |
|---|---|
| Polite | 疑いましょう |
Imperative and requests命令形
| Plain command | 疑え |
|---|---|
| Plain negative (don't) | 疑うな |
| Polite request (-te kudasai) | 疑ってください |
| Polite negative (-naide kudasai) | 疑わないでください |
Can and if
Potential可能形
| Plain | 疑える |
|---|---|
| Plain negative | 疑えない |
| Polite | 疑えます |
| Polite negative | 疑えません |
Conditional (-ba)仮定形・ば
| Plain | 疑えば |
|---|---|
| Plain negative | 疑わなければ |
Conditional (-tara)たら
| Plain | 疑ったら |
|---|---|
| Plain negative | 疑わなかったら |
Passive and causative
Passive受身形
| Plain | 疑われる |
|---|---|
| Plain negative | 疑われない |
| Polite | 疑われます |
| Polite negative | 疑われません |
Causative使役形
| Plain | 疑わせる |
|---|---|
| Plain negative | 疑わせない |
| Polite | 疑わせます |
| Polite negative | 疑わせません |
Causative passive使役受身形
| Plain | 疑わされる |
|---|---|
| Plain negative | 疑わされない |
| Polite | 疑わされます |
| Polite negative | 疑わされません |
More common Japanese verbs and adjectives
- 見当たらない (miataranai)not be found
- 解きほぐす (tokihogusu)to disentangle, to untangle, to unravel
- 間違いない (machigainai)certain, sure, no doubt
- 愛しい (itoshii)lovely, dear, beloved
- 外す (hazusu)to remove, to take off, to detach
- 危うい (ayaui)dangerous, in danger, facing imminent danger
- 経る (heru)to pass, to elapse, to go by
- 構う (kamau)to mind, to care about, to be concerned about
- 刻む (kizamu)to mince, to cut fine, to chop up
- 騒ぐ (sawagu)to make noise, to make racket, to be noisy
- 通る (tooru)to go by, to go past, to go along
- 漬ける (tsukeru)to soak, to steep, to dip
About these tables
The forms are built from Wiktionary's conjugation tables, and they are the ones the Japanese verb conjugation worksheet generator prints, so a chart or answer key made there matches this page. That page explains how the forms were checked.
Print this verb chart opens 疑う (utagau) on the worksheet preview with every form filled in, ready to print on A4 or US Letter or save as PDF. To practice it with other verbs and adjectives, the generator also makes blank conjugation boxes and quick quizzes with answer keys. To practice online instead, the Japanese verb conjugation quiz marks each form as you type it.
Verbs, adjectives and their meanings come from JMdict, the property of the Electronic Dictionary Research and Development Group, used in conformance with the Group's licence. The forms are built by the standard rules, with the irregular ones written out.