His possible course of action was to start a new business.

I have been studying all the time.

The forest is a quiet and beautiful place.

We had a picnic in the forest over the weekend.

I plan to move my address next week.

He spent the day in a melancholy mood.

He walked around the room melancholically.

He has been melancholy recently and doesn't feel like enjoying anything.

He was walking around the room melancholically.

He was diagnosed with bipolar disorder and began treatment.