・When I went to the shop, I happened to meet two classmates of mine.
・Because I was beaten by my boss, I decided to avoid contacting him.
・～ing, S V～.
・S, ～ing, V～. ・S V, ～ing
・Not knowing what to do, I was at a loss.
・Tom, still being silent, seems to be nervous.
・I made up my mind to approach Tom, running after him on the road.
・The weather being nice, we went for a walk.
・Having finished his work, he went home.