開国する · noun or participle which takes 'suru'
| Form | Positive | Negative |
|---|---|---|
| Dictionary | 開国する | 開国しない |
| Polite | 開国します | 開国しません |
| Past polite | 開国しました | 開国しませんでした |
| Past | 開国した | 開国しなかった |
| Te-form | 開国して | 開国しないで |
| Desire | 開国したい | 開国したくない |
| Potential | 開国できる | 開国できない |
| Passive | 開国される | 開国されない |
| Causative | 開国させる | 開国させない |
| Causative passive | 開国させられる | 開国させられない |
| Volitional | 開国しよう | |
| Polite volitional | 開国しましょう | |
| Imperative | 開国しろ | 開国するな |
| Conditional | 開国すれば | 開国しなければ |
| Tara conditional | 開国したら | 開国しなかったら |
noun, noun or participle which takes 'suru', intransitive verb
opening a country to the world; ending national seclusion
Most familiar in historical contexts, especially Japan ending 鎖国 and opening diplomatic or commercial relations with foreign countries. Used as a noun or as the intransitive する verb 開国する.
See also: 鎖国
Japan opened to the world in the mid-nineteenth century.
The opening of the country at the end of the Edo period brought major changes to society.
noun, noun or participle which takes 'suru', intransitive verb
founding a country; establishment of a state
Less common than 建国 for the founding of a country. Often feels historical or formal, as in phrases referring to the beginning or founder of a state.
He is called the founder of this country.
Japan opened itself to the outside world in 1854.
America pressed Japan to open its borders.