He was dancing, swinging his hips.

I am studying Japanese.

I decided to meet him at the rendezvous.

I sat down on a park bench and started reading a book.

I am sitting on a bench in the park and reading a book.

I am studying Japanese.

We are going on a trip together.

I was waiting for him in the waiting room.

I am waiting for the train to come.

He built a house with straw.