～一方だ
〜ippou da
Formation
Verb-dictionary form + 一方だ
Expresses that a situation or condition is continuing to increase or decrease in one direction.
When to use
一方だ: keeps going one way, usually worse (悪くなる一方だ).
Explanation
The ～一方だ grammar point is used when something is trending in a single direction over time, often increasing or worsening. It emphasizes that the tendency keeps going in one direction.
Example sentences
-
The world's population continues to increase.
Sekai no jinkou wa fueru ippou da.
-
Public safety in this town is getting worse and worse.
Kono machi no chian wa akka suru ippou da.
-
My Japanese keeps improving.
Boku no nihongo wa joutatsu suru ippou da.
-
As summer arrives, it just keeps getting hotter.
Natsu ni naru to, atsusa ga kibishiku naru ippou da.