上下する · noun or participle which takes 'suru'
| Form | Positive | Negative |
|---|---|---|
| Dictionary | 上下する | 上下しない |
| Polite | 上下します | 上下しません |
| Past polite | 上下しました | 上下しませんでした |
| Past | 上下した | 上下しなかった |
| Te-form | 上下して | 上下しないで |
| Desire | 上下したい | 上下したくない |
| Potential | 上下できる | 上下できない |
| Passive | 上下される | 上下されない |
| Causative | 上下させる | 上下させない |
| Causative passive | 上下させられる | 上下させられない |
| Volitional | 上下しよう | |
| Polite volitional | 上下しましょう | |
| Imperative | 上下しろ | 上下するな |
| Conditional | 上下すれば | 上下しなければ |
| Tara conditional | 上下したら | 上下しなかったら |
top and bottom; upper and lower; up and down
Refers to spatial or positional relationship between upper and lower parts, or the two ends of something.
I arranged books on the top and bottom shelves.
In this diagram, top and bottom are reversed.
noun, noun or participle which takes 'suru', intransitive verb
rising and falling; fluctuating; going up and down
Describes movement or change in level, such as prices, temperature, or physical motion. Can be used as a noun or with する.
Stock prices are fluctuating wildly.
The elevator goes up and down.
noun, noun or participle which takes 'suru', intransitive verb
going and coming back; round trip
Used for movement between two places, especially going and returning along the same route. Often seen in contexts like commuting or traveling between two points.
Many businesspeople travel back and forth between Tokyo and Osaka.
upper and lower classes; ruler and ruled; government and people
Refers to social hierarchy, the relationship between those in power and ordinary people, or between different social strata.
Communication between management and workers is important.
first and second volumes
Used for two-volume sets, such as books or publications, where 上 is the first volume and 下 is the second.
This novel was published in two volumes.
top and bottom; two-piece outfit
Clothing term for a matching set of upper and lower garments, or simply referring to the separate pieces of an outfit.
This suit is a good deal if you buy the jacket and pants together.
Stock prices fluctuate a lot.
He travels back and forth between Tokyo and Osaka every day.
This case is split into an upper and lower part.
This suit looks sharp when worn as a matching set.
first and second volume; two-volume set
both tracks; up and down lines