This is an old Japanese textbook that explains the usage of '變格' in detail.

It's difficult to remember words with irregular conjugation.

Almond oil is indispensable in my skincare routine.

I go jogging every day.

He works as a neurosurgeon.

This ancient document contains descriptions about the brain.

My dream is to become a neurosurgeon.

My favorite fighting game is Street Fighter.

He distinguished himself in that project.

He never misses a day of martial arts training.