He is interested in diachronic linguistics studies.

He is interested in synchronic linguistics.

He is thought to be a very unsociable person.

He has a strong sense of self-affirmation and always maintains a positive attitude.

Kanna has two dogs.

A mass noun refers to a noun that cannot be counted.

He spread the sheets on the bed.

He took out a thousand yen bill from his wallet.

The new edition of this book has been released.

I cast a ballot for the election.