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Japanese verb侵す (okasu) Conjugation
侵す (okasu) means “to invade, to raid, to violate”. It is a う-verb (godan) verb. It is an う-verb (godan): the last sound changes, 侵さない and 侵します, and the te-form is 侵して. 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 invade, to raid, to violate
- Type
- う-verb (godan)
- Dictionary form
- 侵す
- Reading
- おかす
- Romaji
- okasu
- Masu form
- 侵します
- Nai form
- 侵さない
- Te-form
- 侵して
- Ta form
- 侵した
Basic forms
Present現在形・辞書形
| Plain | 侵す |
|---|---|
| Plain negative | 侵さない |
| Polite | 侵します |
| Polite negative | 侵しません |
Past過去形・た形
| Plain | 侵した |
|---|---|
| Plain negative | 侵さなかった |
| Polite | 侵しました |
| Polite negative | 侵しませんでした |
Te-formて形
| Plain | 侵して |
|---|---|
| Plain negative | 侵さないで |
Progressive (-te iru)ている
| Plain | 侵している |
|---|---|
| Plain negative | 侵していない |
| Polite | 侵しています |
| Polite negative | 侵していません |
Wanting, inviting, telling
Want to (-tai)たい形
| Plain | 侵したい |
|---|---|
| Plain negative | 侵したくない |
| Polite | 侵したいです |
| Polite negative | 侵したくないです |
Volitional意向形
| Plain | 侵そう |
|---|---|
| Polite | 侵しましょう |
Imperative and requests命令形
| Plain command | 侵せ |
|---|---|
| Plain negative (don't) | 侵すな |
| Polite request (-te kudasai) | 侵してください |
| Polite negative (-naide kudasai) | 侵さないでください |
Can and if
Potential可能形
| Plain | 侵せる |
|---|---|
| Plain negative | 侵せない |
| Polite | 侵せます |
| Polite negative | 侵せません |
Conditional (-ba)仮定形・ば
| Plain | 侵せば |
|---|---|
| Plain negative | 侵さなければ |
Conditional (-tara)たら
| Plain | 侵したら |
|---|---|
| Plain negative | 侵さなかったら |
Passive and causative
Passive受身形
| Plain | 侵される |
|---|---|
| Plain negative | 侵されない |
| Polite | 侵されます |
| Polite negative | 侵されません |
Causative使役形
| Plain | 侵させる |
|---|---|
| Plain negative | 侵させない |
| Polite | 侵させます |
| Polite negative | 侵させません |
Causative passive使役受身形
| Plain | 侵させられる |
|---|---|
| Plain negative | 侵させられない |
| Polite | 侵させられます |
| Polite negative | 侵させられません |
More common Japanese verbs and adjectives
- 始める (hajimeru)to start, to begin, to commence
- 写る (utsuru)to be photographed, to be projected
- 手渡す (tewatasu)to hand, to deliver in person
- 重る (omoru)to get heavy
- 唱える (tonaeru)to recite, to chant
- 乗り越える (norikoeru)to climb over, to get over, to cross
- 申し上げる (moushiageru)to say, to tell, to state
- 数える (kazoeru)to count, to enumerate
- 請け負う (ukeou)to contract, to undertake, to take on
- 先駆ける (sakigakeru)to do before, to be ahead of
- 打ち切る (uchikiru)to stop, to abort, to discontinue
- 浮かび上がる (ukabiagaru)to rise to the surface
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 侵す (okasu) 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.