He goes to the gym regularly.

Are you really not going to use this unused laptop?

He is the most competent employee of our company.

Who is the user of this software?

This bottle is reusable.

Learning irregular verbs is difficult.

An irregular galaxy is a type of galaxy that does not have a definite shape.

Her face shape is very beautiful.

In Japanese grammar, the conjectural form is used to express the future or assumptions.

He is struggling to understand the perfect tense in English.