Saikin, kono machi no jinkou ga kyuu ni hette imasu.

Recently, the population of this town has been decreasing rapidly.

Onaka ga hetta node, chikaku no resutoran de hirugohan o tabemashou.

Since I'm hungry, let's have lunch at a nearby restaurant.

Mainichi undou o tzuketara, taijuu ga san-kiro herimashita.

After continuing to exercise every day, my weight decreased by 3 kilograms.

Atarashii ruuru no okage de, koutsuu jiko no kazu ga zuibun hetta.

Thanks to the new rules, the number of traffic accidents has decreased considerably.

Shigoto ga isogashiku natte, shumi ni tsukau jikan ga hette shimaimashita.

As I got busier with work, the time I spend on my hobbies has decreased.

Kyuuryou wa fuenai noni, chokin ga dondon hette iku node fuan desu.

I am anxious because my savings are steadily decreasing even though my salary is not increasing.