Please refer to this example.

Kihan is my best friend.

How did the ancients live?

The creatures of the ancient times were significantly different from the creatures of today.

The culture of classical antiquity has a significant impact on the modern world.

The philosophy of Ancient Greece has a significant influence on modern thinking.

The buildings of Ancient Rome still inspire many people today.

The passive form in Japanese is used differently from English.

This quadrilateral is a square.

By learning the imperfective form, you can understand Japanese grammar more deeply.