It is important to understand the importance of health.

His explanation was impossible to understand.

I am interested in Japanese language education.

Learning how to use auxiliary verbs is important for understanding Japanese.

Transitive verbs require an object that is directly moved by the subject.

I felt his behavior was very free.

Separable verbs are unique to German grammar.

Reflexive verbs are used to express actions where the subject is acting on itself.

Regular verbs are relatively easy to learn.

He can write sentences using potential verbs.