In Japanese grammar, the ren'youkei form of verbs plays an important role.

He worked hard to accomplish his goals.

He is studying Japanese grammar.

His role is the team leader.

Health is very important.

His opinion is very important.

He is studying Japanese.

A verb plays the role of expressing actions or states in a sentence.

He received the letter challenging him to a duel and began preparing for the duel.

Gender roles are an important element in defining individual behavior in society.