He has a bump on his face.

The stem protrusion of this plant is very unique.

He is immersed in the study of pterygoid processes.

He exercised every day and became young quickly.

He is good at using irregular verbs.

His voice change came very early, starting at the age of 12.

It's difficult to remember irregular verbs.

This song is characterized by its irregular time, making the rhythm unique.

His art is odd, but that's why I like it.

His behavior was increasing in weirdness.