集中
集中する · noun or participle which takes 'suru'
| Form | Positive | Negative |
|---|---|---|
| Dictionary | 集中する | 集中しない |
| Polite | 集中します | 集中しません |
| Past polite | 集中しました | 集中しませんでした |
| Past | 集中した | 集中しなかった |
| Te-form | 集中して | 集中しないで |
| Desire | 集中したい | 集中したくない |
| Potential | 集中できる | 集中できない |
| Passive | 集中される | 集中されない |
| Causative | 集中させる | 集中させない |
| Causative passive | 集中させられる | 集中させられない |
| Volitional | 集中しよう | |
| Polite volitional | 集中しましょう | |
| Imperative | 集中しろ | 集中するな |
| Conditional | 集中すれば | 集中しなければ |
| Tara conditional | 集中したら | 集中しなかったら |
Meanings
noun, noun or participle which takes 'suru', transitive verb, intransitive verb
concentration; focus one's attention
Used for directing one's attention or mental effort to a task, object, or point; commonly takes に as in 仕事に集中する, and can also be transitive in expressions such as 注意を集中する.
During the exam, please concentrate on the questions.
He was focused on the screen and did not answer.
noun, noun or participle which takes 'suru', transitive verb, intransitive verb
concentration in one place; centralization; gathering
Used when people, buildings, power, money, functions, or similar things are gathered in or directed to one place, organization, period, or point.
The population is concentrated in urban areas.
The company centralized authority at the head office.
noun, noun or participle which takes 'suru', transitive verb, intransitive verb
focus of questions; focus of debate; convergence
An abstract extension used when questions, criticism, attention, discussion, or attacks converge on one person, issue, or point.
The reporters' questions focused on the coach.
The debate focused on how the budget would be used.
within a collection of works
Limited bibliographic or literary use meaning 'in/within a collection,' usually seen as part of compounds or phrases such as 歌集中 or 句集中 rather than as the everyday meaning 'concentration.'
歌集中 is sometimes used to mean 'within a poetry collection.'
Usage patterns
- 〈事〉に集中するto concentrate on something
He concentrated on his studies.
- 〈場所〉に集中するto be concentrated in a place
The population is concentrated in the cities.
- 〈人〉に集中するfor criticism or attention to converge on someone
The criticism was all directed at him.
- 集中して〈動詞〉to do something while concentrating
I solved the problems while concentrating hard.