I have to prepare for tomorrow's class tonight.

Kyōhō is my best friend, and he is a very kind person.

He was able to abandon that vice.

How long is the perimeter of this rectangle?

He is obsessed with his own thoughts and refuses to listen to others' opinions.

He is sticking to his own thoughts.

The autumn wind blows, and the leaves fall.

His behavior is considered ugly.

The ugliness of his heart became apparent.

He was respected as the tribal chief of the tribe.