His drive for success keeps him moving forward.

He is an expert in ethology, and his research is highly regarded worldwide.

Understanding the exposed form is important in learning Japanese.

In Japanese morphology, the inflected form plays an important role.

The internal shape of this product is very complex.

He has a slender build, and suits suit him very well.

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.

In Japanese grammar, the hypothetical form is one of the inflectional forms of verbs.