His posthistory was very interesting.

My mother has been working as a nurse for many years.

His room is always filled with gloom.

He had been harboring pent-up feelings for a long time.

He suppressed his feelings and said nothing.

Mr. Urano is my best friend.

This plan has the backing of his experience.

His claim was backed up by evidence.

It's really depressing when this rainy weather continues.

He spent the day in a depressive mood.