I'm always busy during the daytime, and I only have time to rest at night.

He had been working overseas for an extended period of time.

Sakakima is my best friend.

The theory of spacetime is an important part of physics.

Mr. Azama is my best friend.

Mr. Mashiwa is my best friend.

The train will arrive soon.

I am studying for the Japanese Language Proficiency Test next year.

He likes to take a walk in the park at dusk.

He believed in the proverb 'good things come to those who wait', and continued to wait patiently.